Dog Quality of Life Calculator
Rate your dog on the seven dimensions of the HHHHHMM Scale: Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad. Each dimension is scored 0 to 10. The calculator adds them up, classifies the total, and gives you clear talking points for your next veterinary visit. It works equally well for healthy senior dogs, dogs with chronic illness, and dogs receiving palliative or hospice care.
What is the HHHHHMM Scale?
The HHHHHMM Scale was developed by veterinary oncologist Dr. Alice Villalobos to give pet owners a structured, repeatable way to assess a dog's quality of life at home. The acronym stands for seven dimensions of daily experience: Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad. Each dimension is scored from 0 (worst) to 10 (best), giving a maximum of 70 points. Dr. Villalobos proposed that a total above 35 generally represents acceptable quality of life, particularly in the context of palliative and hospice care. The scale is now widely used by veterinarians, palliative care specialists, and pet owners worldwide.
How to score each dimension accurately
Accuracy comes from honest, recent observation rather than memory. Score based on the past one to two weeks rather than a single day, unless the dog's condition has changed sharply. Hurt is the most important dimension: a dog in unmanaged pain cannot truly enjoy any other aspect of life, so pain control must come first. Hunger and hydration reflect whether the body is getting what it needs to function. Hygiene recognises that a dog who cannot be kept clean and free of sores will suffer additional discomfort. Happiness asks whether the dog still shows signs of joy: wagging, eye contact, interest in walks or play. Mobility assesses both independent movement and whether assisted movement (harnesses, carts) still gives the dog a meaningful experience. The final dimension - more good days than bad - is the most holistic: a dog who has more difficult days than comfortable ones is telling you something important regardless of individual sub-scores.
Using the score in conversation with your veterinarian
No calculator replaces clinical examination and the relationship you have with your veterinarian or veterinary palliative care team. The HHHHHMM score is best used as a structured summary of your observations to bring to that conversation. Note the date and score each time you assess so your vet can see the trend. A stable score of 45 over several months is very different from a score of 45 that has dropped from 60 in three weeks. If any single dimension scores 4 or below, flag that to your vet even if the total is above 35, because a serious deficit in one area can matter more than the aggregate number suggests. Veterinary palliative care specialists can often suggest targeted interventions - adjusted pain protocols, appetite stimulants, physiotherapy, acupuncture, or mobility aids - that improve specific sub-scores and, with them, the dog's daily experience.
Tracking quality of life over time
A single score is a snapshot. The most useful application of the HHHHHMM Scale is as a weekly or bi-weekly diary kept consistently over weeks or months. When you track each sub-score alongside date, medication changes, and other notes, patterns emerge: some dimensions stay stable while others trend down, or an intervention causes a visible uptick in happiness and mobility. Many veterinary palliative care programmes provide printed diary sheets for exactly this purpose. Even a simple notes app or spreadsheet works well. Keeping the diary also helps with one of the hardest decisions dog owners face: recognising when bad days are consistently and reliably outnumbering good ones, which is the clearest signal the scale offers.
HHHHHMM Scale score interpretation
| Total score | Percentage | Quality band | Suggested action |
|---|---|---|---|
| 56-70 | 80-100% | Excellent | Continue current care; monitor routinely |
| 42-55 | 60-79% | Good | Address any low sub-scores; routine vet check |
| 35-41 | 50-59% | Fair | Discuss concerns with your vet soon |
| 28-34 | 40-49% | Poor | Consult vet about palliative options |
| 14-27 | 20-39% | Very poor | Discuss hospice or end-of-life care with vet |
| 0-13 | 0-19% | Critical | Urgent veterinary consultation needed |
Based on the scale developed by Dr. Alice Villalobos, DVM. A score above 35 generally indicates acceptable quality of life. Any single dimension scoring 4 or below warrants attention regardless of the total.
Frequently asked questions
What total score is considered acceptable quality of life?
Dr. Villalobos proposed that a combined score above 35 out of 70 generally represents an acceptable quality of life, particularly in palliative or hospice settings. Scores in the 42 to 55 range are considered good, and 56 to 70 is excellent. However, the threshold is a guideline rather than a hard rule: context matters, and a dog scoring 36 with a rapidly worsening trend may be in a worse position than a dog scoring 33 with a stable trend and responsive pain management.
Can a single low sub-score matter even if the total is above 35?
Yes. A score of 4 or below in any single dimension warrants veterinary attention regardless of the total. A dog in severe pain who scores 10s on every other dimension is not enjoying an acceptable quality of life. The total score is useful but it should always be read alongside the individual sub-scores.
How often should I complete the assessment?
For dogs with a stable chronic condition, weekly or bi-weekly scoring is usually enough to catch meaningful changes. For dogs whose condition is actively progressing, daily scoring is more informative. At minimum, score before and after any significant change in medication, diet, or environment so you can see whether the change helped.
Is this scale only for dogs near end of life?
No. The HHHHHMM Scale was originally designed for dogs with terminal or chronic illness and those in palliative care, but it works equally well as a general wellness check for healthy senior dogs. Regular scoring from early senior years gives you a personal baseline for your dog, which makes it much easier to notice when something has shifted.
What if I disagree with my score for a dimension?
The scale is subjective by design: you know your dog better than anyone. If a description does not quite match your situation, pick the closest option and add a note in your diary. If you are uncertain, err on the side of a lower score and discuss the dimension specifically with your vet. The goal is honest reflection, not a perfect number.
Does the HHHHHMM Scale apply to other pets?
A cat-specific version of the scale exists with slightly different criteria, because cats show pain and distress differently from dogs. The core framework is the same, but the behavioural cues used to score each dimension differ. For birds, rabbits, and other species, a veterinarian experienced with that species can help adapt the framework.