Dog Age and Cat Age in Human Years

Find your dog’s or cat’s age in human years. Bigger dogs age faster after the first two years.

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How to use the dog and cat age calculator

  1. Type your numbers in the boxes (pick your currency or units if asked).
  2. The answer updates as you type: no button to press.
  3. Copy the result, or share it on WhatsApp with one tap.

Questions

Is 1 dog year really 7 human years?

No: the first year is about 15 human years, the second about 9, then 4–7 a year depending on size.

Is my data private?

Yes. Everything happens inside your own browser: nothing you type or choose is uploaded to us or anyone else.

Is it free?

Completely free, with no sign-up, no watermark and no limit on how many times you use it. Light ads keep the site running.