Convert Cat’s Age to Human Years

How old is your cat in comparison to your own age?

Cats age differently to us humans. As they age through the life stages their bodies also change so it is useful to appreciate their comparative age and adjust the diet to suit their age and health conditions. They do not stay young for long as we know it. After the first year cats are fully developed and have reached sexual maturity. Generally cats have six  life stages they go through. A cats breed is certainly a factor when it comes to lifespan. Research suggests that mixed breed cats are, in general, live longer than purebred cats. See table below for cat life stages and equivalent age.

These days’ cats live longer as a result of various factors including better nutritional diet, exercise, greater care and medical advances etc. cats go through a number of changes throughout their lives. By knowing the current life stage of your cat, you’ll be able to adjust care accordingly to help provide her or him with optimal health, nutrition and quality of life so you can experience comfort and the joys of life together.

Below is a guide and approximate comparison table:

The 6 Life stageAge of catHuman equivalent
1. Kitten: Birth to 6 months0 – 1 month0 – 1 year
2 – 3 months2 – 4 years
4 months6 – 8 years
6 months10 years
2. Junior: 7 months to 2 years7 months12 years
12 months15 years
18 months21 years
2 years24 years
3. Prime: 3 years to 6 years3 years28 years
4 years32 years
5 years36 years
6 years40 years
4. Mature: 7 years to 10 years7 years44 years
8 years48 years
9 years52 years
10 years56 years
5. Senior: 11 years to 14 years11 years60 years
12 years64 years
13 years68 years
14 years72 years
6. Geriatric: 15 years and over15 years76 years
16 years80 years
17 years84 years
18 years88 years
19 years92 years
20 years96 years
21 years100 years
22 years104 years
23 years108 years
24 years112 years
25 years116 years

Domesticated cats typically live around 15 to 20 years of age (in human years).

The oldest cat recorded according to the 2007 edition of Guinness Book of Records; The oldest known cat, named Crème Puff, lived to age 38 years and 3 days. This is equivalent 168 years in cat years. Crème Puff was a mixed tabby, born August 1967 and died in August 2005.