Forget the old "multiply by 7" rule. Our breed-specific calculator gives you the real answer.
Dogs don't age at a constant rate—they mature faster when young and slow down later.
Dogs mature incredibly fast in year 1. A 1-year-old dog is about 15 in human years!
After year 2, aging slows to about 4-5 human years per dog year, varying by size.
Smaller dogs live longer. A 10-year-old Chihuahua ≈ 56 human years, but a Great Dane ≈ 66!