Pet Age Calculator

Dog and cat years into human years.

Pet

Age (years)

Human years

48.6

175 available

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About this calculator

Convert dog and cat years to human years: epigenetic log formula for dogs, 15/24/+4 schedule for cats.

Dog age formula?

Human age ≈ 16 × ln(dog years) + 31, from canine epigenetic research.

Cat age formula?

15 for year one, 24 by year two, then +4 per year.

Why different per species?

Species age at different rates; size and breed shift dogs further.