4 dog years in human years
≈ 34 human years for a medium breed. Size changes it a lot:
| Small (under 20 lb) | 32 |
|---|---|
| Medium (21–50 lb) | 34 |
| Large (51–100 lb) | 36 |
| Giant (100 lb+) | 40 |
Know the exact months? Use the calculator for a precise figure. Have a cat?
≈ 34 human years for a medium breed. Size changes it a lot:
| Small (under 20 lb) | 32 |
|---|---|
| Medium (21–50 lb) | 34 |
| Large (51–100 lb) | 36 |
| Giant (100 lb+) | 40 |
Know the exact months? Use the calculator for a precise figure. Have a cat?