Pet Age in Human Years & Longevity Solver

Convert your dog or cat's biological age into human years using modern veterinary metabolic growth models.

Pet Species & Breed Size Category

Veterinary Curve

Equivalent Human Age

36 Years Old

Life Stage Mature Adult

Life Expectancy 12–14 Yrs

Senior Threshold At Age 8

Developmental Milestone Peak physical strength & mental maturity

Recommended Veterinary Screening Annual wellness exam & dental scaling

Why 7:1 Rule is Inaccurate Year 1 equals ~15 human years due to rapid growth

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