The chart
- 1 cat year = about 15 human years
- 2 cat years = about 24 human years
- Each year after: about 4 human years
So a 5-year-old cat is about 36, a 10-year-old cat is about 56 and a 15-year-old cat is about 76. Check any age with our cat age calculator.
Cat life stages
- Kitten (0-1): vaccines, spay or neuter, lots of play
- Junior (1-2): finishing growth, settling into adult habits
- Prime (3-6): yearly checkups and dental care
- Mature (7-10): watch weight and dental health closely
- Senior (11-14): checkups often every 6 months
- Super senior (15+): gentle care, comfort and close monitoring
Signs to mention to your vet
Changes in appetite, drinking more water, litter box changes, weight loss or hiding more than usual can all be early signs of health problems in older cats.
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Questions people ask
How old is my cat in human years?
About 15 at one year, 24 at two, then add about 4 human years for each cat year after that.
How long do indoor cats live?
Many indoor cats live into their mid to late teens, and some live past 20.
When should senior cats see the vet?
Many vets suggest checkups every 6 months for cats 11 and older.
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The Paw Plan shares general information, not veterinary advice. Every pet is different, so check with your vet about your pet's health, diet and care.