How old is my cat in human years?

Cats have shorter lifespans than humans, but with proper care, many cats live into their 20s.  The oldest cat according to the record books became 38 years old.

Veterinarians and cat-related organizations generally count on six life stages for cats.

• Kittens 0-6 months of age – the kitten is growing and maturing quickly
• Junior/teenager, 6 months to 2 years – the kitten reaches its full size, but still has a lot of energy and learns about the world
• Prime, 3-6 years – the cat is mature, healthy, and active
• Mature, 7-10 years – equivalent to humans around mid 40s to mid 50s
• Senior, 11-14 years – equivalent to humans approximately 55 to 70s
• Geriatric, 15 and older – many cats in their teens don’t show any signs of being older, but it’s a good idea to get more frequent health check-ups

The table below gives a rough guide to a cat’s age in human years. Just like with humans there’s an individual component to aging.

Life Stage	Age of cat	Approx human equivalent
Kitten: Birth to 6 months	0-1 month	0-1 year
2-3 months	2-4 years
4 months	6-8 years
6 months	10 years
Junior: 7 months to 2 years	7 months	12 years
	12 months	15 years
	18 months	21 years
	2 years	24 years
Prime: 3 years to 6 years	3 years	28 years
4 years	32 years
5 years	36 years
6 years	40 years
Mature: 7 years to 10 years	7 years	44 years
8 years	48 years
9 years	52 years
10 years	56 years
Senior: 11 years to 14 years	11 years	60 years
	12 years	64 years
	13 years	68 years
	14 years	72 years
Geriatric: 15 years and up	15 years	76 years
	16 years	80 years
	17 years	84 years
	18 years	88 years
	19 years	92 years
	20 years	96 years
	21 years	100 years