🐾 Cat Quality of Life Calculator (Paw Score)
Rate your cat across 7 areas of wellbeing with this free Paw Score calculator. Based on the HHHHHMM Scale used by veterinary professionals to assess quality of life in senior and ill cats.
For each category, choose the score that best describes your cat today. Cats are skilled at masking discomfort, so look closely — there are no right or wrong answers, honest observation is what matters.
What Is the Paw Score (HHHHHMM Scale) for Cats?
The HHHHHMM Scale was developed by Dr. Alice Villalobos, a veterinary oncologist, as a practical framework for evaluating quality of life in animals facing serious illness, chronic pain, or end-of-life conditions. Though originally described for dogs, veterinarians use the identical framework for cats — the acronym stands for Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad.
Each category is scored from 1 to 10, for a maximum total of 70. A score of 35 or above is generally considered an acceptable quality of life — meaning most needs are being met and the cat has more positive experiences than suffering. Below 35, the balance tips, and the conversation about what more can be done — or whether continuing treatment is in the cat's best interest — becomes necessary.
Cats present a particular challenge here: they're instinctively good at masking pain and illness, a survival trait from being both predator and prey in the wild. That's why the categories above lean on concrete, observable behaviors — grooming habits, litter box use, willingness to jump — rather than more obvious cues like vocalizing or limping, which cats often suppress until a condition is advanced.
When to Use a Quality of Life Assessment for a Cat
Quality of life assessment is most useful in these situations:
Senior cats (10+ years): A monthly assessment helps you notice gradual changes before they become obvious. Aging cats change slowly — grooming less, jumping less, sleeping in different spots — and a structured checklist catches drift that day-to-day observation misses.
Cats with chronic kidney disease, cancer, or hyperthyroidism: These are among the most common serious conditions in older cats, and ongoing monitoring of wellbeing helps guide treatment decisions alongside bloodwork and vet exams.
Cats with chronic pain conditions: Arthritis is significantly underdiagnosed in cats because they hide stiffness well and rarely limp the way dogs do. Reduced grooming and reluctance to jump are often the first visible signs, and both are captured directly in the categories above.
Before and after treatment changes: Starting a new medication, adjusting a dose, or beginning palliative care? Assess before and assess a month later. The numbers make it easier to evaluate whether the change made a real difference.
The Hardest Question: More Good Days Than Bad
Of all seven categories, "More Good Days Than Bad" is the one that carries the most emotional weight — and often the most diagnostic value. It's also the one most owners find hardest to answer honestly.
A "good day" for a cat doesn't require play or exploring. It might mean settling in a favorite sunny spot, purring when petted, grooming normally, or greeting you at the door. A "bad day" is one where those moments are absent — replaced by hiding, refusing food, or obvious discomfort that can't be relieved.
Keeping a simple daily log — just one or two words — helps. "Good," "OK," "rough" is enough. After a month, the pattern is usually clearer than memory alone provides.
Frequently Asked Questions
Is there a cat quality of life calculator?
Yes — this tool applies the same HHHHHMM Scale used for dogs to cats. It's a veterinarian-developed quality of life assessment covering 7 categories, and vets use the same scale for both species since the underlying framework (pain, nutrition, hydration, hygiene, mood, mobility, overall trend) applies equally to cats.
When should I use a quality of life calculator for my cat?
Quality of life assessments are most useful for senior cats, cats with terminal illness, kidney disease, cancer, or chronic pain conditions, or any cat whose daily wellbeing you're monitoring over time. Cats are especially good at hiding illness, so a monthly structured check catches gradual decline that day-to-day observation often misses.
What score indicates a good quality of life for a cat?
On the HHHHHMM Scale (maximum score 70), a total of 35 or above is generally considered acceptable quality of life. As with dogs, the score is a starting point for a conversation with your vet — not a definitive answer. Trends over time matter more than a single number.
Want the full framework explained?
Read our in-depth guide covering how to score each category honestly, track trends over time, and know when a score means it's time to talk to your vet.
Read the complete quality of life guide →Is your cat entering their senior years?
Use our Cat Vet Visit Scheduler to see how often your senior cat should be checked — and what to bring up at each visit.
Get your cat's vet schedule →If your cat's score is low and you're facing a difficult decision, this may help → Pet Euthanasia: What It Costs and What to Expect