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Cat Age Calculator

Convert cat years to human years and see life-stage guidance.

Human age

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Tips

    How we convert cat to human years

    We use a commonly accepted model: the first year ≈ 15 human years, the second year adds ≈ 9 (total 24), and each year after adds ≈ 4. Fractional years are prorated.

    Recommended gear by life stage

    Cat fountain
    Quiet Stainless Water Fountain
    Hydration helps urinary health; stainless is easy to clean.
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    Puzzle feeder
    Puzzle Feeder
    Slows eating and adds enrichment for indoor cats.
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    Cat age FAQs

    How many human years is 1 cat year?

    About 15 human years for the first year.

    Is indoor vs outdoor different?

    Outdoors adds risk; we include a small adjustment in tips and life-stage suggestions.