Dog Age Converter

Convert your dog's age to human years by breed size.

Dog's age (years):

Breed size:

–Human years

–Life stage

How to use

Enter age and size — human-equivalent age appears; everything runs in your browser.

Is 1 dog year really 7 human years?

No — that's a myth. Dogs mature fast early: year one ≈ 15 human years.

Does size matter?

Yes — large breeds age faster after age two, so pick your dog's size.

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