Free tool
Pet age converter
Convert your pet’s age to rough human years and see which life stage they are in.
Age conversion is a rough guide at best — a well-cared-for large dog ages faster than a small one, and “human years” is really just a way to talk about life stage. Use it to sanity-check which stage of care your animal is in, not as a medical measure.
Want the full context behind these numbers? Open the species care sheets — every figure here comes from them.