Pet Age Calculator
Human-equivalent age for dogs and cats.
Result
Dog age in human years39
Method15 + 9 + ~5/yr (size-adjusted)
Pet Age Calculator — FAQs
Is dog age ×7 accurate?
No — dogs mature fast early (year 1 ≈ 15 human years, year 2 ≈ 9 more), then ~4–7/year depending on size. Large dogs age faster.
How old is a 7-year-old dog?
Roughly 44–60 in human years depending on size — small dogs age slower. It's not a simple ×7.
Need a Custom Tool Built?
We build calculators, estimators and internal tools for businesses in the UK and North America.
Get a QuoteEmbed this Pet Age Calculator on your site
Free to use — paste this snippet into any webpage. It auto-resizes and includes a small attribution link. Add ?theme=dark to the iframe URL for dark mode.