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Dog Age Calculator

Worked example result
Equivalent human years (guideline)39.0
Life stageAdult

A 5-year-old medium dog is about 39 in human years: 15 + 9 for the first two years, then 5 per year for three more — the Adult life stage.

Year 1 ≈ 15 human years; year 2 ≈ +9; then +4 (small), +5 (medium) or +6 (large) per year · Powered by CalcHub — Dog Age Calculator