This calculator converts your dog's age to human years and provides life stage information. The conversion accounts for size differences, as smaller dogs typically live longer and age differently than larger dogs.
Free dog life expectancy calculator. Estimate how long your dog will live based on breed, current age, weight, health status, and lifestyle factors. Get personalized life expectancy estimates.
Free dog year conversion calculator. Convert your dog\
Free mixed breed dog life expectancy calculator. Estimate how long your mixed breed dog will live based on current age, weight, and size category. Mixed breeds often benefit from hybrid vigor.
FAQs
Modern conversion formulas account for size differences. Small dogs age about 15 human years in their first year, then 4 years per dog year. Large dogs age about 14 human years in the first year, then 6-7 years per dog year. This reflects that smaller dogs typically live longer.
This is a biological phenomenon where larger dog breeds tend to have shorter lifespans. Factors include faster growth rates, higher metabolic rates, and increased risk of certain health conditions in larger breeds.
Dogs go through puppy, young adult, adult, senior, and geriatric stages. The timing of these stages varies by size, with larger dogs reaching senior status earlier than smaller dogs.
Use our dog age calculator by entering your dog's age and size category. The calculator uses modern conversion formulas that account for size differences to provide an accurate human age equivalent.
