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Pet Age Calculator
How old is your pet in human years?
⚠️ Age conversions are estimates based on veterinary research averages. Individual pets age differently.
How to use
- Select your pet type (and size for dogs).
- Enter their age in years.
- See the human-age equivalent instantly.
About this tool
The old "multiply by 7" rule is wrong. This calculator uses veterinary research: dogs age fast early, then size determines the pace.
Cats, rabbits, and parrots use their own curves.
FAQ
Why does size matter for dogs?
Large breeds age faster — a 10-year-old Great Dane is far older in human terms than a 10-year-old Chihuahua.
Is the 7-year rule accurate?
No. A 1-year-old dog is roughly 15 in human years, not 7. The first two years count the most.
What about other species?
Aging research is thinnest for exotic pets. These are best-available estimates.
