โ๏ธ Dog vs Cat Aging Comparison
Enter your pets' ages to compare their human-equivalent life stages side by side.
๐ถ Dog
๐ฑ Cat
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Human-equivalent years
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Human-equivalent years
๐ Comparison
How Are These Ages Calculated?
๐ถ Dogs
Dog aging rates vary significantly by size. Small dogs age more slowly after year 2 and often live 14โ16+ years, while giant breeds age faster and typically live 8โ10 years. Our calculator uses size-adjusted multipliers based on published veterinary research.
๐ฑ Cats
Cats age rapidly in the first two years (year 1 โ 15 human years, year 2 โ 24 human years), then slow to roughly 4 human years per calendar year. Indoor cats typically live longer than outdoor cats. Large breeds like Maine Coons mature more slowly.