Pet Age Calculator
Convert your pet's age to human equivalent years. Supports cats and dogs (small, medium, large). Includes a full age conversion table.
Human equivalent age
Pet type
Age Conversion Table
How It Works
Pets age differently than humans, and the rate varies by species and size.
Conversion Rules
- Cats: Year 1 = 15, Year 2 = 24, then +4 per year
- Small dogs: Year 1 = 15, Year 2 = 24, then +4 per year
- Medium dogs: Year 1 = 15, Year 2 = 24, then +5 per year
- Large dogs: Year 1 = 12, Year 2 = 22, then +6 per year
Large dogs age faster after maturity, which is why they generally have shorter lifespans.
FAQ
Q. Why do large dogs age faster?
A. Larger dogs have faster metabolisms and grow more rapidly, which leads to faster aging. This is why small breeds often live 15+ years while large breeds may only live 8-10 years.
Q. Is the "7 years per human year" rule accurate?
A. No, this is oversimplified. Dogs and cats age much faster in their first two years, then the rate slows down. This calculator uses more accurate conversion formulas.