Everyday tool
See a dog or cat’s chronological age, next birthday, and a general human-age comparison.
Human age is a simple comparison, not a health or lifespan assessment
Use expected adult weight for puppies.
The human-age number is a simple educational comparison. Aging varies by breed, body size, genetics, weight, and health.
Age result
Medium (10–25 kg) model
Pet age
Select dog or cat and enter birth and reference dates. A name is optional; changing the reference date shows age on that day.
Choose small, medium, large, or giant. For puppies, use expected adult weight rather than current weight.
Read elapsed years/months/days alongside life stage and human-age equivalent. The copied result also includes birthday and countdown.
A worked example
The simple model reaches 24 at two years and adds five per later year for a medium dog.