About the Cat Quality of Life Calculator
This tool uses the HHHHHMM Quality of Life Scale, developed by veterinary oncologist Dr. Alice Villalobos and widely used in feline hospice and palliative care. You rate your cat in seven categories, each on a 0-to-10 scale where 10 is best, and the calculator adds them into a total out of 70. It is a structured way to step back from day-to-day worry and look at your cat's overall comfort with a consistent yardstick.
The seven categories and the score
The letters in HHHHHMM stand for the five H's, one M, and a second M:
- Hurt — Is pain adequately controlled, and can the cat breathe comfortably? Breathing and pain relief come first because they weigh most heavily on suffering.
- Hunger — Is the cat eating enough on its own, or does it need coaxing, hand-feeding, or a feeding tube?
- Hydration — Is the cat well hydrated? Cats needing subcutaneous fluids score lower unless fluids keep them comfortable.
- Hygiene — Can the cat stay clean, especially after elimination, and is it free of pressure sores and matting?
- Happiness — Does the cat show interest, respond to family, and engage with its surroundings, or does it seem withdrawn and depressed?
- Mobility — Can the cat move on its own, get to the litter box and food, and reposition itself?
- More good days than bad — Over recent weeks, have good days outnumbered bad ones?
The score is simply the sum of the seven numbers, so the maximum is 7 × 10 = 70. As a rule of thumb, a total of 35 or above is considered an acceptable quality of life, and a total below 35 signals that quality of life is compromised and merits a candid discussion with your veterinarian.
Why use a structured scale
When a cat is chronically ill, aging, or in hospice care, owners are often too close to the situation to judge it clearly. A single bad morning can feel like the end, and a single good afternoon can mask a long decline. Scoring the same seven categories on a regular schedule turns a flood of emotion into a trend you can actually read: a total that drifts from 52 to 44 to 33 over a month tells a very different story than one that holds steady.
Reference points to anchor your scores
- A 10 in a category means no concern at all — for Mobility, a cat that jumps, climbs, and moves normally.
- A 5 means the category is a genuine daily struggle that is partly managed — for Hunger, a cat that only eats when hand-fed warmed food.
- A 0 or 1 means the category is failing despite intervention — for Hurt, pain that medication no longer controls.
- A total near 70 describes a comfortable, engaged cat; a total near 35 describes a cat whose good and bad are roughly balanced.