# PetPawCalc

> Free calculators and guides for dog and cat owners in the US. PetPawCalc provides instant, research-backed answers about pet age, nutrition, weight, pregnancy, costs, and insurance — built for pet parents, not veterinarians.

PetPawCalc is a free tool-first resource. Every calculator is designed to give practical, actionable output — not just information. All content is written for US pet owners and calibrated to current veterinary guidelines. No signup required for any tool.

## Tools

- [Dog Age Calculator](https://petpawcalc.com/tools/dog-age-calculator.html): Converts dog years to human years using size-adjusted aging curves. Accounts for the fact that large breeds age faster than small breeds, and that dogs age rapidly in their first two years.

- [Cat Age Calculator](https://petpawcalc.com/tools/cat-age-calculator.html): Converts cat years to human years based on feline aging research. Distinguishes between the rapid development phase (years 1–2) and the more gradual aging of adult cats.

- [Pet Food Calorie Calculator](https://petpawcalc.com/tools/pet-food-calorie-calculator.html): Calculates daily calorie needs for dogs and cats based on weight, age, neuter status, and activity level using the Resting Energy Requirement (RER) formula.

- [Dog Weight Calculator](https://petpawcalc.com/tools/dog-weight-calculator.html): Estimates a puppy's adult weight based on current age and weight, with size-specific maturity timelines. Also helps assess whether an adult dog is at a healthy weight.

- [Annual Pet Cost Calculator](https://petpawcalc.com/tools/annual-pet-cost-calculator.html): Estimates total annual cost of owning a dog or cat, broken down by category: food, vet care, grooming, insurance, supplies, and boarding.

- [Pet Insurance Cost Estimator](https://petpawcalc.com/tools/pet-insurance-cost-estimator.html): Estimates monthly pet insurance premiums based on species, breed size, age, and US location. Covers accident-and-illness plans.

- [Dog Pregnancy Calculator](https://petpawcalc.com/tools/dog-pregnancy-calculator.html): Calculates estimated due date and delivery window from mating date. Includes a week-by-week pregnancy development guide covering all 9 weeks of gestation.

- [Dog Heat Cycle Calculator](https://petpawcalc.com/tools/dog-heat-cycle-calculator.html): Predicts next heat date and fertile window based on last heat date and breed size. Breaks down all four stages of the canine estrous cycle (proestrus, estrus, diestrus, anestrus) with estimated dates.

- [Dog Vet Visit Scheduler](https://petpawcalc.com/tools/dog-vet-visit-scheduler.html): Enter your dog's age, size, and last vet visit date to get a personalized next checkup date, urgency status, and a life-stage-specific visit agenda covering what to discuss with your vet.

- [Cat Vet Visit Scheduler](https://petpawcalc.com/tools/cat-vet-visit-scheduler.html): Enter your cat's age, lifestyle (indoor/outdoor), and last vet visit date to get a personalized next checkup date, urgency status, and a life-stage-specific visit agenda covering what to discuss with your vet.

- [Cat Pregnancy Calculator](https://petpawcalc.com/tools/cat-pregnancy-calculator.html): Calculates estimated due date and delivery window from mating date. Includes a week-by-week pregnancy development guide covering all 9 weeks of feline gestation, with care tips for each stage.

- [Cat Weight Calculator](https://petpawcalc.com/tools/cat-weight-calculator.html): Checks whether an adult cat is at a healthy weight based on breed type and sex, using breed-specific ranges. Also estimates a kitten's adult weight from current age and weight.

- [Dog Quality of Life Calculator](https://petpawcalc.com/tools/dog-quality-of-life-calculator.html): Assesses a dog's quality of life across 7 categories using the veterinary HHHHHMM Scale (Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, More good days than bad). Produces a scored summary with flags for urgent concerns. Designed for senior dogs and dogs with illness or chronic pain.

- [Cat Quality of Life Calculator](https://petpawcalc.com/tools/cat-quality-of-life-calculator.html): Assesses a cat's quality of life across the same 7-category veterinary HHHHHMM Scale, adapted with cat-specific behavioral cues (grooming habits, litter box access, hiding behavior) since cats mask illness and pain far more than dogs. Produces a scored summary with flags for urgent concerns. Designed for senior cats and cats with illness or chronic pain.

- [Cat Heat Cycle Calculator](https://petpawcalc.com/tools/cat-heat-cycle-calculator.html): Predicts a cat's next heat date, fertile window, and each stage of the feline estrous cycle based on her last heat date and lifestyle (indoor/outdoor). Explains the difference between proestrus, estrus, and interestrus, and notes that cats are induced ovulators — ovulation only occurs if mating takes place.

- [Pet Weight Calculator](https://petpawcalc.com/tools/pet-weight-calculator.html): Combined dog and cat weight checker. Lets users select species, then checks current weight against breed-typical ranges, plus an interactive 3-point Body Condition Score (BCS) self-check (ribs, waist, belly tuck). Links to the dedicated Dog Weight Calculator and Cat Weight Calculator for more detail.

- [Dog Vaccination Schedule Calculator](https://petpawcalc.com/tools/dog-vaccination-schedule-calculator.html): Enter a dog's age and lifestyle (boarding/daycare, dog parks, outdoor/rural exposure) to get a personalized vaccine status list — core vaccines (DHPP, rabies) and lifestyle-driven non-core vaccines (Bordetella, leptospirosis, canine influenza) — flagged as due, upcoming, recommended, or up to date, with typical cost ranges per vaccine. Also includes a CAPC-based deworming schedule calculator (same age input) covering the every-2-week puppy phase, monthly phase, and quarterly adult maintenance — dates/intervals only, no dosage information.

- [Cat Vaccination Schedule Calculator](https://petpawcalc.com/tools/cat-vaccination-schedule-calculator.html): Enter a cat's age and lifestyle (indoor-only, indoor with other cats, outdoor access) to get a personalized vaccine status list — core vaccines (FVRCP, rabies) and lifestyle-driven FeLV recommendation — flagged as due, upcoming, recommended, or up to date, with typical cost ranges per vaccine. Also includes a CAPC-based deworming schedule calculator (same age input) covering the every-2-week kitten phase (starting ~3 weeks, a week later than puppies), monthly phase, and quarterly adult maintenance — dates/intervals only, no dosage information.

- [Spay/Neuter Cost Calculator](https://petpawcalc.com/tools/spay-neuter-cost-calculator.html): Select dog or cat, spay or neuter, clinic type (private vs. low-cost), and optional add-ons (bloodwork, microchip, e-collar) to get an instant total cost estimate. Accounts for dog size/weight as a cost multiplier.

- [Dental Cleaning Cost Calculator](https://petpawcalc.com/tools/dental-cleaning-cost-calculator.html): Select dog or cat and estimated dental severity (mild/moderate/severe, with expected number of extractions) plus optional pre-anesthetic bloodwork, to get a total cost estimate covering base cleaning, bloodwork, and per-tooth extraction costs. Also includes a "Home Care Between Cleanings" section covering brushing frequency guidance and the VOHC (Veterinary Oral Health Council) seal for evaluating dental chews/diets/water additives, plus existing anesthesia-free-cleaning-limitations content (AVMA/AAHA/AVDC oppose it as cosmetic-only, doesn't reach below the gumline).

- [Pet Grooming Cost Calculator](https://petpawcalc.com/tools/pet-grooming-cost-calculator.html): Select dog or cat, size (for dogs), coat type (short/medium/long/curly), and professional grooming frequency to get an annual grooming cost estimate covering both professional visits and home maintenance supplies.

- [Flea & Tick Prevention Cost Calculator](https://petpawcalc.com/tools/flea-tick-prevention-cost-calculator.html): Select dog or cat, dog weight tier, and product type (basic topical, oral chewable, combo with heartworm, or 8-month collar) to get an instant annual and monthly cost estimate, plus a comparison of prevention cost vs. the cost of treating a flea infestation, heartworm, or tick-borne disease.

- [Puppy Potty Training Calculator](https://petpawcalc.com/tools/puppy-potty-training-calculator.html): Enter a puppy's age, expected adult size, and training method (crate/pad/mixed) to get bladder-hold time (daytime and overnight), a full daily potty-break schedule, and an expected housetraining timeline by breed size (toy/small vs medium vs large/giant).

- [Kitten Litter Training Timeline](https://petpawcalc.com/tools/kitten-litter-training-timeline.html): Enter a kitten's age in weeks and household cat count to get age-specific guidance — litter box size, clumping vs. non-clumping litter safety, and box count using the n+1 rule — plus troubleshooting for kittens not using the box.

- [Raw Feeding Calculator](https://petpawcalc.com/tools/raw-feeding-calculator.html): Enter a dog or cat's weight, life stage, and raw feeding model (80/10/10 Prey Model Raw or 70/10/10+10% BARF for dogs) to get daily portions split into muscle meat, bone, and organ, plus an estimated monthly and annual cost based on meat price per pound.

- [Pet Boarding Cost Calculator](https://petpawcalc.com/tools/pet-boarding-cost-calculator.html): Select facility type (kennel, pet hotel, luxury resort, in-home sitter), number of nights, add-ons, and whether travel falls on a major holiday to get an instant total cost estimate for boarding a dog or cat.

- [Titer Test vs. Revaccination Cost Calculator](https://petpawcalc.com/tools/titer-test-vs-revaccination-calculator.html): Select species, years to compare, titer testing frequency, and number of pets to compare the total cost of standard core-vaccine revaccination against titer testing, showing both the best-case (all titers stay positive) and a scenario where one booster is still eventually needed.

- [Spay/Neuter Recovery Timeline Calculator](https://petpawcalc.com/tools/spay-neuter-recovery-timeline.html): Enter surgery date, species, sex, and age group to get a personalized recovery calendar with actual dates for daily incision checks, litter change window (cats), cone removal, and activity restriction. Includes a normal-vs-call-the-vet incision comparison table and a cone-vs-recovery-suit comparison table.

- [Pet Insurance Waiting Period Tracker](https://petpawcalc.com/tools/pet-insurance-waiting-period-tracker.html): Enter a policy's effective date and its accident/illness/orthopedic waiting periods to see the exact calendar dates each coverage type begins. Covers the pre-existing-condition trap (symptoms during the waiting period can be excluded permanently) and explains that switching insurers resets all waiting periods.

- [Neuter Timing by Breed & Size](https://petpawcalc.com/tools/neuter-timing-by-breed-size.html): Select a dog breed (21 entries: 5 mixed-breed weight categories plus 16 individually studied breeds) and sex to see a summary of what UC Davis (Hart et al., 2020/2024) research reported on joint disorder and cancer risk by neutering age — framed strictly as "what the study found," not a recommendation, with a fixed vet-consult notice on every result. Includes a weight-category risk table and a traditional-6-month-vs-research-based comparison table.

- [Cat Introduction Timeline](https://petpawcalc.com/tools/cat-introduction-timeline.html): Enter an introduction start date, new cat type (kitten/adult), and resident cat details to get a 6-stage timeline (separate room, scent exchange, feeding near the door, site swapping, visual contact, supervised face-to-face) with date ranges plus "move forward when" / "go back if" signs for each stage. Explicitly frames dates as typical ranges, not a fixed schedule. Includes a kitten-vs-adult-introduction comparison table and a smooth-signs-vs-warning-signs table.

- [Pet Travel Timeline Planner](https://petpawcalc.com/tools/pet-travel-timeline-planner.html): Enter a planned departure date, destination "tier" (1: no rabies antibody test / 2: antibody test with moderate wait / 3: antibody test with longest wait, rabies-free region), and whether microchip/rabies vaccine are already done, to get a reverse-calculated prep timeline (microchip → rabies vaccine → antibody blood draw → lab wait → post-result wait → health certificate/USDA endorsement). Deliberately avoids naming specific countries since requirements change; flags any calculated milestone date that has already passed. Fixed "confirm with USDA APHIS and your destination" warning shown at both page top and in the result. Covers the microchip-before-rabies-vaccine order requirement, the antibody test's multi-month impact, and the health certificate's short (~10 day) validity window. Also includes a "Don't Forget the Crate Itself" section covering the IATA CR1 crate-sizing formula (length = nose-to-tail + half elbow height, width = shoulder width × 2, height = standing height + bedding allowance) as informational content, not a separate interactive calculator, since standalone crate-size calculators are a saturated space. Bidirectionally linked with the Titer Test vs. Revaccination Calculator.

- [Dog Introduction Timeline](https://petpawcalc.com/tools/dog-introduction-timeline.html): Enter an introduction start date, new dog type (puppy/adult), and resident dog details to get a 6-stage timeline (neutral territory first meeting, parallel walk, angled approach & brief sniff, walk home together with resident dog entering first, indoor supervised interaction with separate feeding/sleeping, gradual unsupervised time) with date ranges plus "move forward when" / "go back if" signs for each stage. Covers resource-guarding recovery (2-4 week structural separation) and post-fight restart protocol (24+ hour separation, resume from parallel walk at greater distance). Includes a puppy-vs-adult comparison table and a smooth-signs-vs-warning-signs table. Bidirectionally linked with Cat Introduction Timeline.

- [New Baby Pet Prep Timeline](https://petpawcalc.com/tools/new-baby-pet-prep-timeline.html): Enter a due date, pet species (dog/cat), and current behavior-concern status to get a reverse-calculated prep timeline (behavior foundation at ~4 months out, sound desensitization at ~3 months, gear practice/resource access review at ~2 months, carrying rehearsal/handling familiarization at ~1 month, scent exposure at the due date, first meeting a few days after homecoming). Species-specific content — dog track covers stroller/gear practice, cat track covers resource-access and vertical-space protection instead. Fixed supervision warning shown in the result. Includes a dog-vs-cat prep comparison table.

- [Puppy Teething Timeline](https://petpawcalc.com/tools/puppy-teething-timeline.html): Enter a puppy's age in months/weeks to see their current teething stage (toothless → baby teeth erupting → full 28-tooth baby set → baby teeth falling out → adult teeth erupting → adult molars → complete 42-tooth adult set) and what's next. Flags when it's time to start checking for retained baby teeth (from ~4 months old) with a dedicated section explaining why removal is often coordinated with spay/neuter surgery under the same anesthesia. Includes a safe-chews-vs-avoid comparison table and links the chewing-spike period to the existing potty-training-regression post.

- [Pet Insurance Claim Calculator](https://petpawcalc.com/tools/pet-insurance-claim-calculator.html): Enter a claim amount, deductible, deductible type (annual/per-incident), reimbursement rate, and remaining annual limit to see expected reimbursement and out-of-pocket cost. The differentiator is a 5-year side-by-side comparison for a recurring/chronic condition, showing that a per-incident (lifetime per-condition) deductible is typically cheaper than an annual deductible when the same condition recurs every year — since the per-incident deductible is paid only once for that condition, while an annual deductible resets every policy year. Also explains when annual is the better choice instead (multiple unrelated conditions over time). No insurer recommendations or rankings; industry-general ranges only. Completes a 3-way bidirectional link with the Pet Insurance Cost Estimator and Pet Insurance Waiting Period Tracker.

- [Dog Car Anxiety Desensitization Planner](https://petpawcalc.com/tools/dog-car-anxiety-desensitization-planner.html): Leads with a discriminator table distinguishing anxiety-driven car trouble (symptoms before the car moves) from true motion sickness (symptoms once moving, vestibular/inner-ear based, ~15% of adult dogs, more common in puppies whose inner ear isn't fully developed). Enter a start date, dog age group, symptom type, and severity to get a 6-stage desensitization timeline (parked car → engine on → 30-second drive → around the block → short fun drive → gradual extension) with date ranges scaled by severity, plus "move forward when"/"go back if" signs per stage. Medication names (Cerenia/maropitant, trazodone) mentioned only as vet-discussion options, never with dosing. Bidirectionally linked with the Cat Carrier Training Planner.

- [Cat Carrier Training Planner](https://petpawcalc.com/tools/cat-carrier-training-planner.html): Enter a vet appointment date, current carrier reaction (none/wary/panics), and carrier type to get a reverse-calculated countdown plan (make the carrier furniture → feed near/inside it → reward voluntary entry → close the door briefly → carry a few steps → into the car engine-off → short practice drive), with the full window scaled by how severe the cat's reaction is. Covers why top-loading/removable-top carriers reduce stress, Feliway timing (spray 15-30 minutes ahead so the alcohol base evaporates), Fear Free certified clinics, and a "short on time" fallback section for appointments only a day or two out. Bidirectionally linked with the Dog Car Anxiety Desensitization Planner.

- [Dog Heat Safety Calculator](https://petpawcalc.com/tools/dog-heat-safety-calculator.html): Enter temperature, humidity, and individual risk factors (brachycephalic/flat-faced head shape, age, body condition, heart/respiratory conditions, planned activity level) to get a safety rating (Safe/Caution/Danger/Extreme Danger) and recommended max walk time. Base calculation uses the "150 rule" (temp °F + humidity % ≥ 150 means avoid outdoor exercise), then applies risk-factor penalties on top — differentiating it from breed-blind temperature charts. Includes the 7-second pavement test, early heatstroke signs and first-response steps, parked-car danger, and cooling-vest limitations in humid conditions.

## Checklists

Interactive, printable checklists at https://petpawcalc.com/checklists/. Each has checkboxes that save progress in the browser (localStorage) and a print/PDF view. Unlike the Tools section (dog/cat only), Checklists cover a wider range of companion animals.

- [New Puppy Checklist](https://petpawcalc.com/checklists/new-puppy-checklist.html): Supplies, first vet visit, core vaccine series timing (6-16 weeks), socialization window (closes ~16 weeks), spay/neuter timing, and first-year budgeting.
- [New Kitten Checklist](https://petpawcalc.com/checklists/new-kitten-checklist.html): Supplies, litter box setup (one per cat plus one extra), first vet visit, FeLV/FIV testing, core FVRCP vaccine series timing, toxic plant warnings (lilies), and first-year budgeting.
- [New Rabbit Checklist](https://petpawcalc.com/checklists/new-rabbit-checklist.html): Housing space requirements, diet (unlimited hay + measured pellets), litter-safe products (never clumping cat litter), finding a rabbit-savvy vet, GI stasis emergency recognition, and the 8-12 year lifespan commitment. The site's first non-dog/cat content.
- [Pet Emergency Kit Checklist](https://petpawcalc.com/checklists/pet-emergency-kit-checklist.html): Disaster/evacuation preparedness for dogs and cats — documents (vaccination records, microchip, ownership proof), 3-7 day food/water/medication supply, carrier/leash/litter supplies, and an evacuation plan (pet-friendly hotels, out-of-area contact, rescue alert sticker). Universal, not species-specific.

- [Puppy Socialization Checklist](https://petpawcalc.com/checklists/puppy-socialization-checklist.html): 26 items across people, sounds, surfaces/floors, transport, handling (paws/ears/mouth), other animals, and environments. Enter the puppy's birthdate for a live countdown to the end of the critical 16-week socialization window. Includes an AVSAB-sourced section on why socialization shouldn't wait for full vaccination, paired with safety caveats (avoid dog parks/pet stores; favor controlled settings).

- [New Guinea Pig Checklist](https://petpawcalc.com/checklists/new-guinea-pig-checklist.html): The site's third non-dog/cat checklist. 20 items covering cage size (7.5 sq ft minimum for one, 10.5+ preferred for a pair), never-alone social housing requirement (legally mandated in some countries), vitamin C (can't be synthesized, unlike most mammals), alfalfa-only-under-6-months hay rule, cedar/pine bedding and wire-flooring hazards, and a 5-7 year lifespan commitment.

- [Senior Pet Care Checklist](https://petpawcalc.com/checklists/senior-pet-care-checklist.html): 20 items for dogs and cats covering vet screening (twice-yearly visits, senior blood panel components by name only, dental and joint assessment as commonly under-diagnosed conditions), home comfort changes (non-slip flooring, ramps, orthopedic beds, lower-entry litter boxes, ramps/steps to elevated cat perches), bidirectional weight monitoring, and behavioral observation (new confusion, disorientation, or house-soiling framed as "log and mention to your vet," not a diagnostic tool). Deliberately frames aging as a normal life stage, not a disease, and excludes euthanasia/end-of-life content, which is covered elsewhere on the site.

- [Moving With Pets Checklist](https://petpawcalc.com/checklists/moving-with-pets-checklist.html): 24 items organized by countdown (4 weeks before, 2 weeks before, 1 week before, moving day, first week after). Covers microchip address updates (the most commonly forgotten step), the moving-day safe-room/"Do Not Open" sign protocol to prevent escapes, gradual room-by-room introduction at the new home, keeping a cat's existing litter box unchanged to prevent regression (linked to the litter-training-regression post), a 2-3 week indoor-only period for cats before outdoor access, and researching destination pet registration/leash/breed rules.

- [Post-Surgery Recovery Checklist](https://petpawcalc.com/checklists/post-surgery-recovery-checklist.html): 22 items for major/orthopedic procedures (TPLO, other CCL/ACL repairs), explicitly distinct from the existing Spay/Neuter Recovery Timeline's much shorter 10-14 day scale. Covers pre-surgery home prep, the first 48 hours, and 8-12 weeks of strict activity restriction. Centers on the most common recovery mistake — loosening restrictions once a dog "feels better" around weeks 3-6, well before the bone has actually finished healing on recheck imaging. Fixed "your vet's discharge instructions always take priority" warning at page top and in the disclaimer. No dosage/medication content.

## Blog

- [How to Calculate Your Dog's Age in Human Years (It's Not 7x)](https://petpawcalc.com/blog/dog-age-human-years): Explains why the multiply-by-7 rule is inaccurate, how dogs actually age by life stage, and why size is the most important variable.

- [How Much Does a Dog Really Cost Per Year?](https://petpawcalc.com/blog/annual-cost-of-owning-a-dog): Full annual cost breakdown by category (food, vet, grooming, insurance, boarding) with ranges by dog size. Includes costs that commonly surprise new owners.

- [How Much Should I Feed My Dog?](https://petpawcalc.com/blog/how-much-to-feed-a-dog): Explains how to calculate the right daily food amount using RER, with adjustments for life stage, activity level, and neuter status. Covers common feeding mistakes.

- [How Much Should a Senior Dog Eat?](https://petpawcalc.com/blog/how-much-should-senior-dog-eat): Covers calorie and protein needs for aging dogs, when to transition to senior food, signs of under- and overfeeding, and the importance of muscle mass monitoring.

- [Puppy Weight Chart by Breed Size](https://petpawcalc.com/blog/puppy-weight-chart-by-breed-size): Weight charts by breed size category (toy through giant) from 8 weeks to adulthood. Includes adult weight estimation formula and nutrition guidance for large-breed puppies.
- [Kitten Weight Chart by Age](https://petpawcalc.com/blog/kitten-weight-chart-by-breed-size): Birth-to-12-month weight chart for kittens, the "1 pound per month" rule of thumb, and a comparison of typical domestic-shorthair growth vs. slow-maturing large breeds (Maine Coon, Ragdoll, Norwegian Forest Cat).

- [Why Is My Cat Always Hungry?](https://petpawcalc.com/blog/why-is-my-cat-always-hungry): Explains calorie needs by life stage, common reasons cats seem perpetually hungry (underfeeding, low-satiety food, medical causes), and how to assess whether intake is appropriate.

- [How to Tell If Your Dog Is Overweight](https://petpawcalc.com/blog/how-to-tell-if-dog-is-overweight): Three at-home body condition checks (rib test, waist check, profile view). Covers the Body Condition Score (BCS) scale and steps to take if a dog is overweight.

- [The True Cost of Owning a Cat vs Dog](https://petpawcalc.com/blog/true-cost-cat-vs-dog-year-by-year): Year-by-year cost comparison across the full lifetime of a dog vs cat, broken down by category. Includes time cost and commonly underestimated expenses.

- [How Often Should You Take Your Dog to the Vet?](https://petpawcalc.com/blog/how-often-vet-visits-dog-cost-by-age): Recommended vet visit frequency by life stage (puppy, adult, senior) with what each visit should cover and typical costs.
- [Flea & Tick Prevention Cost for Dogs and Cats](https://petpawcalc.com/blog/flea-tick-prevention-cost): Cost breakdown by product type (topical, chewable, combo, collar), why prices vary by dog size and brand, and a cost comparison of prevention vs. treating a flea infestation, heartworm, or tick-borne disease after the fact.

- [Puppy Potty Training Regression: Why It Happens (and How to Fix It)](https://petpawcalc.com/blog/puppy-potty-training-regression): Explains the two predictable regression windows (4-6 months, tied to teething/adolescence, and 7-9 months, tied to adolescent boundary-testing), a behavioral-vs-medical decision table, and a step-by-step reset plan.

- [Cat Litter Training Regression: Why a Trained Cat Suddenly Stops](https://petpawcalc.com/blog/kitten-litter-training-regression): Explains why litter box use is instinctual (not taught) so regression signals a real change, common triggers (moving house, new litter, multi-cat conflict, post-spay/neuter litter texture change), a behavioral/environmental-vs-medical decision table centered on feline idiopathic cystitis (FIC) vs. UTI, and a step-by-step reset plan.

- [How to Tell If Your Dog Is Underweight (and How to Help Them Gain Weight Safely)](https://petpawcalc.com/blog/how-to-tell-if-dog-is-underweight): At-home rib/waist/muscle-tone checks for underweight vs. naturally lean (sighthounds), common causes (underfeeding, dental pain, parasites, illness), and a safe gradual weight-gain plan.

- [How to Tell If Your Cat Is Underweight (and What to Do About It)](https://petpawcalc.com/blog/how-to-tell-if-cat-is-underweight): At-home checks for underweight cats, why weight loss in cats needs faster attention (hyperthyroidism, kidney disease, hepatic lipidosis risk), and a safe weight-gain plan.

- [How Much Does a Vet Visit Cost?](https://petpawcalc.com/blog/how-much-does-a-vet-visit-cost): Detailed cost breakdown for routine exams, vaccines, bloodwork, dental cleanings, emergency visits, and specialist care. Includes geographic variation and cost management strategies.

- [How Long Are Dogs Pregnant?](https://petpawcalc.com/blog/how-long-are-dogs-pregnant): 63-day gestation overview with week-by-week development guide. Covers what to expect each week and how to prepare for whelping.

- [What to Feed a Pregnant Dog: Complete Diet & Nutrition Guide](https://petpawcalc.com/blog/what-to-feed-pregnant-dog): Trimester-by-trimester diet and nutrition guide for pregnant dogs. Covers calorie increases, food type recommendations, supplements, and what to avoid.

- [How to Tell If Your Dog Is Pregnant](https://petpawcalc.com/blog/how-to-tell-if-dog-is-pregnant): Early and later signs of dog pregnancy by week, how to distinguish from false pregnancy, and how veterinarians confirm pregnancy (palpation, ultrasound, relaxin test, X-ray).

- [Signs of Dog Labor: What to Expect Hour by Hour](https://petpawcalc.com/blog/signs-of-dog-labor): Hour-by-hour breakdown of dog labor — pre-labor signs, Stage 1 and Stage 2 labor, placenta delivery, and when to call the vet. Covers the temperature drop method and post-whelping monitoring.

- [How to Reduce Vet Costs Without Compromising Your Dog's Care](https://petpawcalc.com/blog/how-to-reduce-vet-costs-for-dogs): Practical strategies for lowering lifetime vet costs — pet insurance timing, emergency funds, preventive care ROI, dental care, low-cost vaccine clinics, and when to use urgent care vs. the ER.

- [How Often Should Cats Go to the Vet? A Schedule by Age](https://petpawcalc.com/blog/how-often-vet-visits-cat): Recommended vet visit frequency for cats by life stage (kitten, adult, senior) with what each visit should cover, indoor vs. outdoor differences, and typical costs.

- [How Long Are Cats Pregnant?](https://petpawcalc.com/blog/how-long-are-cats-pregnant): Feline gestation overview with week-by-week development guide. Covers signs of pregnancy, what to prepare, and how to support your cat through delivery.

- [How to Tell If Your Cat Is Pregnant](https://petpawcalc.com/blog/how-to-tell-if-cat-is-pregnant): Early and later signs of cat pregnancy by week, how false pregnancy differs from dogs (less common, subtler signs), and how veterinarians confirm pregnancy (palpation, ultrasound, X-ray).

- [What to Feed a Pregnant Cat: Complete Diet & Nutrition Guide](https://petpawcalc.com/blog/what-to-feed-pregnant-cat): Stage-by-stage diet and nutrition guide for pregnant cats. Covers calorie increases, why taurine matters more for cats than dogs, food type recommendations, and what to avoid (including raw fish).

- [Signs of Cat Labor: What to Expect](https://petpawcalc.com/blog/signs-of-cat-labor): Pre-labor signs, stage-by-stage breakdown of feline labor, kitten delivery, and when to contact a vet. Covers nesting behavior, contractions, and post-birth monitoring.

- [How Much Should a Cat Weigh?](https://petpawcalc.com/blog/how-much-should-a-cat-weigh): Healthy weight ranges by breed and sex, how to assess body condition score at home, and what to do if your cat is overweight or underweight.

- [How Much Does a Cat Vet Visit Cost?](https://petpawcalc.com/blog/how-much-does-a-cat-vet-visit-cost): Detailed cost breakdown for cat vet care — routine exams, vaccines, spay/neuter, bloodwork, dental cleanings, and emergency visits. Includes indoor vs. outdoor cost differences and ways to reduce costs.

- [How to Reduce Vet Costs Without Compromising Your Cat's Care](https://petpawcalc.com/blog/how-to-reduce-vet-costs-for-cats): Practical strategies for lowering lifetime cat vet costs — pet insurance timing (cats are cheaper to insure than dogs), emergency funds, why annual bloodwork matters more since cats hide illness, low-cost vaccine/spay-neuter clinics, and when to use urgent care vs. the ER.

- [How Much Should a Senior Cat Eat?](https://petpawcalc.com/blog/how-much-should-senior-cat-eat): Calorie and protein needs for aging cats by weight, why senior cats often need more protein not less, wet vs. dry food considerations, feeding frequency, and how to monitor body condition in older cats.

- [Dog Quality of Life: How to Assess Your Dog's Well-Being](https://petpawcalc.com/blog/dog-quality-of-life-assessment): Explains the HHHHHMM Scale (Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, More good days than bad), how to score each category honestly, how to track trends over time, and what scores below 35 mean in practical terms.

- [Cat Quality of Life: How to Assess Your Cat's Well-Being](https://petpawcalc.com/blog/cat-quality-of-life-assessment): Applies the same HHHHHMM Scale to cats, with cat-specific guidance on why quality-of-life assessment matters even more for cats (they mask pain and illness far better than dogs). Covers cat-specific signs for each category — reduced grooming, reluctance to jump, hiding — and how to use scores over time.

- [How to Tell If Your Cat Is Overweight](https://petpawcalc.com/blog/how-to-tell-if-cat-is-overweight): Three at-home body condition checks for cats (rib test, waist check, belly check), explains the primordial pouch and how it differs from excess fat, the 1-9 BCS scale, and a critical warning against crash dieting cats due to hepatic lipidosis risk.

- [Puppy and Kitten Vaccination Schedule: The Complete Guide](https://petpawcalc.com/blog/puppy-kitten-vaccination-schedule): Week-by-week core vaccine timeline for puppies (DHPP, rabies) and kittens (FVRCP, rabies, FeLV), explains why multiple doses are needed (maternal antibody interference), non-core vaccines by lifestyle, adult booster schedules, and typical costs.

- [Spay or Neuter Your Pet: Cost, Timing, and What to Expect](https://petpawcalc.com/blog/spay-neuter-cost-and-timing): Covers spay vs. neuter cost differences by species and dog size, private vs. low-cost clinic pricing, factors that add to cost (cryptorchidism, being in heat), best age for the procedure, recovery timeline, and where to find low-cost or free programs.

- [Dog and Cat Dental Cleaning Cost: What to Expect](https://petpawcalc.com/blog/dog-cat-dental-cleaning-cost): Explains why extractions (not the base cleaning) drive the final bill, why anesthesia is medically required rather than optional, why anesthesia-free cleanings are opposed by major veterinary bodies, typical cost breakdown, and how often cleanings are needed by breed.

- [Pet Euthanasia: What It Costs and What to Expect](https://petpawcalc.com/blog/pet-euthanasia-cost-and-what-to-expect): A compassionate, practical overview covering typical costs (clinic vs. in-home, cremation options), what the procedure involves, whether to be present, and questions worth asking a vet in advance. Written in an informational, non-clinical tone given the sensitivity of the topic — no calculator, by design.

## About

PetPawCalc is focused on a single niche: calculators and practical guides for US pet owners. All tools are free, require no account, and are designed to give immediately usable outputs. Content follows veterinary guidelines and includes disclaimers where appropriate. The site does not provide medical diagnoses or medication dosing.

Contact: canghun13@naver.com