Dog Age Calculator: Convert Dog Years to Human Years

Understanding Dog Age Calculation

The traditional "multiply by 7" rule for calculating dog years is actually a myth. Dogs age more rapidly in their first two years, and their aging process varies based on size and breed.

Small Dogs

  • Generally live longer
  • Age more slowly
  • Reach maturity faster

Large Dogs

  • Shorter lifespans
  • Age more quickly
  • Later maturity

First Year Development

A dog's first year equals about 15 human years, with the second year adding another 9 human years. After that, each dog year equals about 4-5 human years, varying by size.

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