๐พ Pets
Pet Age Calculator
The familiar seven-to-one rule is wrong in both directions. Pets age rapidly in the first two years and then more slowly, so a one-year-old dog is closer to a fifteen-year-old human while a ten-year-old dog is nearer seventy.
How it works
Pet
Age
Size (dogs only)
Equivalent human age
Life stage
Through its expected lifespan
Typical lifespan
Frequently asked questions
How do I use the Pet Age Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.