Cornish Rex Age Calculator
Convert your Cornish Rex's age to human years. Typical life expectancy 11–15 years.
Last reviewed July 2026 · Free · Nothing you enter is stored
11–15 yr lifespan
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Educational estimate. Your vet is the best judge of your Cornish Rex's health stage.
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About the Cornish Rex
The Cornish Rex typically weighs 6–10 lbs as an adult and lives 11–15 years. Cats age uniformly across breeds, so this calculator applies the standard 15 + 9 + 4/year convention — what differs by breed is life expectancy and adult size.
Frequently asked questions
How do you calculate a Cornish Rex's age in human years?
Cats age at a consistent rate regardless of breed: ~15 human years in year one, 24 by age two, then about 4 human years per cat year after that. Enter your Cornish Rex's age above for the exact figure.
How long do Cornish Rexs live?
The typical Cornish Rex lives 11–15 years. Keeping cats indoors, maintaining a healthy weight, and twice-yearly senior vet visits push toward the top of that range.
How big does a Cornish Rex get?
A healthy adult Cornish Rex typically weighs 6–10 lbs. Use our cat food calculator to portion meals to your cat's actual weight and life stage.
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