Cat Age Calculator
Find out how old your cat is in human years and which life stage they're in.
Your result
Age in human years
40 years
Life stage
Prime adult
How cat years work
A cat's first year equals about 15 human years and the second adds another 9, bringing a two-year-old cat to roughly 24. From then on, each cat year equals about 4 human years.
Feline life stages: kitten (0–6 months), junior (to 2 years), prime (3–6), mature (7–10), senior (11–14) and super senior (15+). Senior cats benefit from twice-yearly vet checks.