Convert your dog's or cat's age to human years with a realistic, size-aware formula — not the old ×7 myth.
No. Pets age fast in their first two years, then more slowly. This tool front-loads those early years and uses a gentler rate afterwards, which matches veterinary guidance far better.
Smaller dogs live longer and age more slowly later in life than large breeds, so the per-year rate is lower for small dogs and higher for large ones.
It's a solid estimate. Real ageing varies by breed, health and individual, so treat it as a guide rather than a precise figure.