Human age of your pet
Dog, cat, rabbit, ferret, guinea pig, hamster, bird or tortoise: each species has its own aging rate. Choose yours to get the equivalence, life stage and what you need to watch for.
10 à 22 kg — a giant dog ages significantly faster than a small dog after maturity.
Equivalent human age
29years
Adulte
Most stable period. Monthly weigh-in, annual vet visit, dental care — this determines quality of life in later years.
Method: AVMA table: 15 human years in year one, +9 in year two, then +5 per year for a moyen dog.
These equivalences are statistical benchmarks drawn from published veterinary tables. Every animal ages at its own pace, depending on genetics, diet and care. This calculator is neither a diagnosis nor veterinary advice.
Frequently asked questions
Is there a universal formula for animal age / human age?
No. Dogs and cats have reference veterinary tables (AVMA, AAFP/AAHA). For other species, there is no equivalent consensus: we then use a model proportional to the species' life expectancy, scaled to an 80-year human life, and we display it explicitly as an estimate.
Why does the first year count so much?
Because it concentrates growth, puberty and maturity. In nearly all domestic species, the first twelfth of life covers the equivalent of our first twenty years — hence a very steep curve at the start then much flatter after.
How do I know the age of an adopted pet?
A veterinarian can estimate it from dentition, lens and joint condition. This is an estimate within a few years in an adult, more precise in a young animal whose permanent teeth erupt on a known schedule.
And how is their health?
Age is just a number. Six questions about weight, diet and what you observe daily, and you get a health score out of 100 with concrete actions.
🩺 Do the pre-health checkFree, no account required, instant result.
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These equivalences are statistical benchmarks drawn from published veterinary tables. Every animal ages at its own pace, depending on genetics, diet and care. This calculator is neither a diagnosis nor veterinary advice.