Cat Quality of Life Calculator

The HHHHHMM scale helps you reflect on a pet's wellbeing. Score each factor 0 (poor) to 10 (good). This is a reflection aid, not a medical decision — discuss the results with your veterinarian.

How the Math Works

The Cat Quality of Life Calculator uses the HHHHHMM scale, a validated veterinary assessment tool that evaluates seven key factors: Hurt (pain management), Hunger (appetite and nutrition), Hydration (fluid intake), Hygiene (self-grooming ability), Happiness (emotional well-being), Mobility (physical movement), and More good days than bad (overall quality). Each factor is scored on a scale from 1 to 10, where 1 indicates severe impairment and 10 represents optimal condition. The final quality of life score is calculated by summing these seven individual scores, producing a total range from 7 (very poor quality of life) to 70 (excellent quality of life). This mathematical approach provides an objective, quantifiable measure that helps track changes over time and supports evidence-based decision making.

Practical Applications

To use this calculator, assess your cat daily by rating each of the seven factors on the 1-10 scale. For example, if your cat shows moderate pain, rate Hurt as 5; if eating well without assistance, Hunger might be 8; if drinking independently, Hydration could be 9. Record scores at consistent times each day, ideally in the morning and evening, to capture variations. When the total score drops below 35, it may indicate your cat is experiencing more bad days than good. Consult with your veterinarian when scores consistently fall below 25, as this often signals the need for intervention or difficult conversations about end-of-life care decisions.

Day-to-Day Use

This calculator transforms abstract quality of life concepts into concrete, actionable data for daily pet care decisions. By tracking scores over weeks and months, you can identify patterns such as which treatments improve mobility or how seasonal changes affect appetite. The numerical tracking helps reduce emotional bias when making care decisions and provides valuable communication with your veterinarian about treatment effectiveness. Additionally, the calculator serves as an emotional support tool, offering objective reassurance during good periods and gentle guidance toward difficult but compassionate choices during challenging times, ultimately helping you provide the best possible care throughout your cat's journey.

Worked example

Scores of 7,7,8,7,7,6,7 → 49 (acceptable).

FAQ