Cat Quality of Life Calculator

The HHHHHMM scale is a quality-of-life checklist created by veterinary oncologist Dr. Alice Villalobos for hospice and palliative-care patients. It scores seven factors — Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad — each from 1 to 10, for a total out of 70. This calculator applies the same scale with cat-specific guidance (hiding, grooming, litter box habits, jumping ability), because cats show decline differently than dogs.

Hurt (pain control), Hunger (appetite and eating), Hydration (fluid intake), Hygiene (grooming and cleanliness — including litter box reliability in cats), Happiness (joy, play, social engagement), Mobility (ability to move, jump, and reach the litter box), and More good days than bad (overall trend). Each is scored 1 (worst) to 10 (best).

On the standard 0–70 scale: 35–70 is considered acceptable (OK), 20–34 means concern — time to discuss the low factors with your vet — and below 20 is serious, warranting a prompt vet visit. As reference points: scoring 8 on all seven factors gives 56/70 (OK); all 3s give 21/70 (Concern); all 2s give 14/70 (Serious). The boundary sits at 35: a total of 35 is OK, 34 is Concern.

A total below 20 falls in the Serious zone of the HHHHHMM scale — a red flag that your cat may be suffering. The recommended next step is to contact your veterinarian promptly to assess what is driving the low scores (pain, appetite loss, dehydration, immobility) and what can be done. A low score is a signal to seek help, never a verdict by itself.

No — never. This tool deliberately never outputs a euthanasia verdict or recommendation. End-of-life decisions involve your cat's full medical picture, your vet's examination, and your knowledge of your cat — no calculator can or should make that call. Use the score and the factor breakdown as a structured starting point for an honest conversation with your veterinarian.

Cats are both predator and prey animals, so their instinct is to conceal weakness. A cat that hides for most of the day, avoids family interaction, or retreats to unusual spots is often signaling pain, nausea, or distress — long before it shows obvious symptoms. In this calculator, persistent hiding lowers the Hurt and Happiness scores, which is why the feline guidance emphasizes it.

Watch for: urinating or defecating outside the box, straining, crying in the box, going much more or less often, or avoiding a high-sided box (which can signal arthritis pain when stepping in). Because box habits reflect pain, mobility, urinary health, and cognition, they feed into the Hygiene and Mobility factors here.

A previously tidy cat with a matted, greasy, or unkempt coat is a classic warning sign — it often means pain (grooming hurts), nausea, weakness, or dental problems make self-care too difficult. Conversely, over-grooming bald patches can signal stress, pain, or skin disease. Either change lowers the Hygiene score and deserves a vet check.

Yes — scores are a snapshot, not a sentence. Pain medication, dental treatment, arthritis management, appetite stimulants, subcutaneous fluids, or simply a lower-sided litter box can each lift several factors. That is why the tracker matters: reassess weekly and you can see whether treatment is working.

For a stable senior cat, monthly reassessment is a good habit; for a cat with a known serious illness, weekly — or as your vet advises. Cats decline gradually and hide it, so scheduled re-checks catch changes you might otherwise normalize day by day.

No. It is an educational screening tool, not veterinary advice. It cannot examine your cat, run bloodwork, or feel an abdomen. Its job is to help you observe systematically and arrive at the vet with clear, organized information — which leads to better conversations and better care decisions.

The scoring math and zones are identical (same HHHHHMM scale, same 35/20 cut-offs), but every factor guide here is written for cats: hiding behavior, grooming, litter box use, jumping onto favorite spots, and the feline grimace scale for pain. The dog version (tool #349) uses canine-specific descriptors instead. Use the one matching your pet's species.

Bring your factor breakdown and tracker. Useful questions: What is likely causing the lowest scores? Is pain adequately controlled — could we trial pain relief and reassess? Are there appetite, hydration, or mobility aids worth trying? What would improvement look like, and when should we recheck? And honestly: what is the trajectory you expect from here?

Each evening, mark the day good or bad based on the whole picture: eating, comfort, interaction, mobility, and litter box habits. Over 2–4 weeks the ratio becomes objective data for the “More good days than bad” factor — far more reliable than memory during an emotional vet visit. The tracker on this page does exactly that, stored privately in your browser.