Cat age calculator
A one-year-old cat is roughly a 15-year-old teenager, and by two they're in their mid-twenties. After that, cats age about four human years per year. Enter your cat's age or birthday to see their age in human years and their life stage.
Enter an age to see human years.
The default is the size-based vet chart. See how pet age is calculated.
Cat years to human years chart
| Cat age | Human years | Life stage |
|---|---|---|
| 1 year | 15 | Young adult |
| 2 years | 24 | Young adult |
| 3 years | 28 | Young adult |
| 4 years | 32 | Young adult |
| 5 years | 36 | Young adult |
| 6 years | 40 | Young adult |
| 7 years | 44 | Mature adult |
| 8 years | 48 | Mature adult |
| 9 years | 52 | Mature adult |
| 10 years | 56 | Senior |
| 11 years | 60 | Senior |
| 12 years | 64 | Senior |
| 13 years | 68 | Senior |
| 14 years | 72 | Senior |
| 15 years | 76 | Senior |
| 16 years | 80 | Senior |
| 17 years | 84 | Senior |
| 18 years | 88 | Senior |
| 19 years | 92 | Senior |
| 20 years | 96 | Senior |
| 21 years | 100 | Senior |
| 22 years | 104 | Senior |
| 23 years | 108 | Senior |
| 24 years | 112 | Senior |
| 25 years | 116 | Senior |
See the printable cat age chart
The default is the size-based vet chart. See how pet age is calculated.
Cat life stages
| Life stage | Age |
|---|---|
| Kitten | Under 1 year old |
| Young adult | 1 to 6 years old |
| Mature adult | 7 to 9 years old |
| Senior | 10 years and older |
Under one year
Cat age by breed
- Abyssinian
- American Curl
- American Shorthair
- Balinese
- Bengal
- Birman
- Bombay
- British Shorthair
- Burmese
- Chartreux
- Cornish Rex
- Devon Rex
- Domestic Longhair
- Domestic Shorthair
- Egyptian Mau
- Exotic Shorthair
- Havana Brown
- Himalayan
- Japanese Bobtail
- Korat
- LaPerm
- Maine Coon
- Manx
- Norwegian Forest Cat
- Ocicat
- Oriental Shorthair
- Persian
- RagaMuffin
- Ragdoll
- Russian Blue
- Savannah
- Scottish Fold
- Selkirk Rex
- Siamese
- Siberian
- Singapura
- Somali
- Sphynx
- Tonkinese
- Turkish Angora
- Turkish Van
FAQ
How do I convert cat years to human years?
A one-year-old cat is about 15 in human years and a two-year-old about 24. After that, add about four human years for every cat year.
How old is a 10-year-old cat in human years?
About 56. That makes a 10-year-old cat a senior.
When is a cat considered a senior?
From about 10 years old, according to the AAHA/AAFP feline life stage guidelines. Cats from 7 to 9 are mature adults.
Does the ×7 rule work for cats?
No. A one-year-old cat is already about 15 in human years, not 7, and older cats age about four human years per year, not seven.
How long do cats live?
Most cats live 12 to 18 years, and many live into their twenties. Indoor cats generally live longer than outdoor cats, mainly because they avoid traffic, fights and disease.