This dog years chart converts a dog’s age to roughly equivalent human years. The first year counts for about 15 human years, the second adds ~9, and each year after adds about 4–5. (Larger breeds age faster.)
| Dog age | Human years |
|---|---|
| 1 | 15 |
| 2 | 24 |
| 3 | 28 |
| 4 | 32 |
| 5 | 36 |
| 6 | 40 |
| 7 | 44 |
| Dog age | Human years |
|---|---|
| 8 | 48 |
| 9 | 52 |
| 10 | 56 |
| 12 | 64 |
| 15 | 76 |
| 16 | 80 |
Approximate — varies by breed and size.