How old is a 10-month-old cat in human years?

A 10-month-old cat is about

in human years

Junior7 months–2 years

Reaching full size and full of energy. Behaviour is still adolescent.

What 10 months means for a cat

Cats are usually treated as kittens until about 6 months, and after that they are juniors until 2 years, a bit like a teenager. A cat aged 10 months is in the junior stage (7 months–2 years). Reaching full size and full of energy. Behaviour is still adolescent.

In the first year, each month counts for about 1.25 human years, so growth is quick.

Care notes for the junior stage

Keep vaccinations and yearly check-ups up to date.
Daily play helps burn off adolescent energy.
Ask your vet when to move from kitten food to adult food.

Kitten age chart

Cat's age	Human years	Life stage
1 month	1	Kitten
2 months	3	Kitten
3 months	4	Kitten
4 months	5	Kitten
5 months	6	Kitten
6 months	8	Kitten
7 months	9	Junior
8 months	10	Junior
9 months	11	Junior
10 months	13	Junior
11 months	14	Junior
1 year	15	Junior

Check any other age

Cat’s age in years

Plus months

Common questions

Is a 10-month-old cat still a kitten?

Almost. By the usual guideline, kittens become juniors after about 6 months, and they keep growing and filling out through their first year.

How old is a 1-year-old cat in human years?

About 15. The second year adds about 9 more, so a 2-year-old cat is around 24.

Keep going

See the full cat years to human years chart or the equivalent for a 10-month-old dog.