Dog & Cat Age Calculator
Convert your pet’s age into approximate human years. Dogs use a size-aware chart — larger breeds often age faster after year two.
About in human years
Planning chart only — not veterinary advice.
Dog and cat years explained
This free dog and cat age calculator converts pet years into approximate human years. Dogs use a size-aware chart (small, medium, large, giant); cats use a simpler adult rate after year two.
Pet age FAQ
Why does dog size matter?
Larger breeds often reach senior years sooner after the second year. Choosing the right size band gives a better birthday or gotcha-day estimate.
What should I do with the result?
Use it for celebration posts and age-right gifts — then browse gotcha day gifts or gotcha day countdown.