Dog Age Calculator
The old “multiply by 7” rule is wrong. Enter your dog’s real age and size — we’ll convert it to human years using the size-adjusted veterinary formula.
Your Dog’s Age in Human Years
Get your results emailed to you. Enter your email for the full age breakdown — the year-by-year math, your dog’s life stage, and what to expect (and watch for) at this age.
Pet age-stage tips + occasional pet-care emails. No spam. Unsubscribe anytime.
How the Math Works
Uses the size-adjusted formula: the first year ≈ 15 human years, the second year ≈ 9, and each year after ≈ 5 (small/medium), 6 (large), or 7 (giant). Larger dogs age faster after year two. This is an estimate — individual dogs vary, and your vet is the best judge of your dog’s age-related needs.