Get accurate results for 300+ breeds using science-based calculations from UC San Diego and AVMA research.
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Our calculator uses the latest veterinary research from UC San Diego and AVMA guidelines, not the outdated multiply-by-7 myth.
Small dogs live 12-16 years while giant breeds live 6-10 years. Size dramatically affects aging speed.
Dogs age rapidly to ~24 human years by age 2, then slow to breed-specific rates of 4-7 years per year.