How old is my cat in human years?

A cat's first year equals about 15 human years, the second year adds about 9 (reaching ~24), and every year after that adds roughly 4 human years.

When is a cat considered a senior?

Cats are generally considered senior from about 11 years old, which is roughly 60 in human years, and geriatric from about 15 years (76+).

Do indoor cats live longer?

Yes. Indoor cats often live 13–17 years or more, while outdoor cats face higher risks and shorter average lifespans.

Cat Age Calculator

How old is your cat in human years? Enter their age below for an instant, vet-based answer.

Quick answer A cat's first year is about 15 human years, and the second year adds roughly 9 more — so a 2-year-old cat is about 24 in human years. After that, each cat year adds about 4 human years. For example, a 7-year-old cat is about 44, a 10-year-old is about 56, and a 16-year-old cat is about 80 in human years.

Your cat's age

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human years

How the cat age calculator works

Cats mature fast early in life and then settle into a steady pace. PawWise follows the life-stage chart from the American Association of Feline Practitioners (AAFP):

Year 1 ≈ 15 human years
Year 2 adds ~9 years (a 2-year-old cat ≈ 24)
Each year after adds about 4 human years

Cat years to human years chart

Cat age	Human age	Life stage
1 yr	15	Adult
2 yr	24	Adult
3 yr	28	Adult
5 yr	36	Adult
7 yr	44	Mature
10 yr	56	Mature
13 yr	68	Senior
16 yr	80	Geriatric
20 yr	96	Geriatric

Reading your cat's life stage

Knowing whether your cat is a kitten, a prime adult, mature, or senior helps you choose the right food, plan vet visits, and watch for age-related conditions like kidney disease and arthritis. Most vets recommend twice-yearly checkups once a cat passes the senior threshold.

⚠️ This is an estimate for general guidance, not veterinary advice. Breed, weight, and health all affect how a cat ages.

Frequently asked questions

When is a cat a senior?

Cats are usually considered senior from around 11 years (≈60 in human years) and geriatric from about 15 years (≈76+).

How long do cats live?

Indoor cats commonly live 13–17 years, and many reach their early 20s. Outdoor cats tend to have shorter average lifespans.

Is one cat year really 7 human years?

No — that's a myth. The first two years account for about 24 human years, then it's roughly 4 per year after that.

You might also like our dog age calculator.