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Pet Age Calculator

Convert dog and cat ages to human years using scientific formulas. Accounts for breed size and life stage.

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Your 3-year-old medium dog is like a…

49-year-old human!

Adult

Health Tips for the Adult Stage

  • 💡Maintain healthy weight
  • 💡Dental cleanings
  • 💡Watch for joint issues

How It Works

Based on the 2019 Nature Aging study using epigenetic clock data:

human_age = 16 × ln(dog_age) + 31

Adjusted by breed size: small dogs age slower, giant breeds age faster.