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Dog Age Calculator

Convert dog years to human years based on breed size

Ever heard that one dog year equals seven human years? That's a myth! Dogs mature much faster in their first two years, and size plays a huge role in aging.

Calculator Inputs

Years

Results

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How It Works

We use the modern AKC-accepted formula. The first year counts for ~15 human years, the second for ~9, and subsequent years vary by size (small dogs age slower than giant breeds).

Tips & Best Practices

  • Small dogs typically live longer than large dogs.
  • The first year of a dog's life equals about 15 human years.
  • Regular vet checkups are crucial as dogs enter their senior years (7+).

Frequently Asked Questions

Is the 7-year rule true?

No. It was a simplified average. A 1-year-old dog can reproduce, while a 7-year-old human cannot. The aging curve is much steeper early on.