Cat Age Chart: How Old Is My Cat in Human Years?

Cats and dogs age differently, and the conversion isn't as simple as multiplying by 7. Here's how to figure out your cat's age in human years.

Cat Age Conversion Chart

Cat Age	Human Years
1	15
2	24
3	28
5	36
7	44
10	56
15	76

How Cats Age

Like dogs, cats mature quickly in their first two years. A 1-year-old cat is about 15 in human years — not a kitten anymore! By age 2, they're roughly 24.

After year 2, each cat year adds about 4 human years. This means a 10-year-old cat is approximately 56 in human years, firmly in their senior years.

Cat Life Stages

**Kitten (0-1 year):** 0-15 human years. Full of energy, learning, and growth.
**Young Adult (1-3 years):** 15-28 human years. Active and playful.
**Adult (3-7 years):** 28-44 human years. Settled but still energetic.
**Senior (10+ years):** 56+ human years. May need adjusted care and more frequent vet visits.

Indoor vs Outdoor Cats

Indoor cats typically live 12-20 years, while outdoor cats average only 5-10 years due to environmental risks. An indoor cat at 15 years old (76 in human years) may still have several good years ahead.

Use our calculator above to find your cat's human age instantly!