Pet Age Calculator
Convert your dog, cat or other pet's age into human years with a single tap.
Pet age in human years
Based on the common AVMA/AKC chart: 1st year = 15, 2nd year = +9, then +4–6 per year (small dogs age slower, large dogs faster).
How old would the same pet be as other animals?
Rough multipliers — for fun comparison only, since species age at very different rates.
How pet ages work
Pets mature much faster than humans in their early years. The old 'one dog year equals seven human years' rule is a myth — a one-year-old dog is closer to a 15-year-old human. This tool applies the right rate for your pet's species and size.
Frequently asked questions
How is a dog's age calculated in human years?
It depends on the dog's size. Small dogs mature slower and live longer, while large dogs age faster. This calculator uses size-specific rates for small, medium and large dogs rather than the old 'multiply by 7' rule.
How do I convert cat years to human years?
The first two years of a cat's life equal roughly 24 human years, and each year after that adds about 4 human years.
Is the pet age calculator accurate?
It gives a close estimate based on common veterinary guidelines, but individual breeds and health can vary. Use it as a guide, not an exact science.