How old is your dog in human years? Enter their age and size for an accurate result based on the latest veterinary research.
| Dog age | Small | Medium | Large | Giant |
|---|---|---|---|---|
| 1 year | 15 | 15 | 15 | 15 |
| 2 years | 24 | 24 | 24 | 24 |
| 3 years | 28 | 29 | 30 | 31 |
| 5 years | 36 | 39 | 42 | 45 |
| 7 years | 44 | 49 | 54 | 59 |
| 10 years | 56 | 64 | 72 | 80 |
| 13 years | 68 | 79 | 90 | 101 |
| 15 years | 76 | 89 | 102 | 115 |
The old "multiply by 7" rule is a myth. Dogs mature much faster in their first two years — a 1-year-old dog is closer to a 15-year-old human, not a 7-year-old.
After age 2, the rate depends on size. Smaller dogs tend to live longer and age more slowly, while giant breeds age faster. This calculator uses size-adjusted rates based on guidelines from the American Veterinary Medical Association.
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