Convert cat’s Age to Human Years

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

Cats age differently to us. As they age 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.

These days’ cats live longer as a result of various factors including better diet, greater care and medical advances etc.

Below is a guide and approximate comparison table:

Life stage Age of cat 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 over 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
22 years 104 years
23 years 108 years
24 years 112 years
25 years 116 years

Domesticated cats typically live 14 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. The cat died in August 2005.