Cat Age Calculator

Convert your cat's age to human years and discover their life stage — using an accurate veterinary formula, not the outdated "multiply by 7" method.

🐈 Cat Age Calculator

Whole years

0–11 months

How the Cat Age Formula Works

Cats age rapidly in their first two years, then at a slower, steadier pace. Here's the formula we use:

Cat AgeHuman EquivalentLife Stage
1 year 15 human years Kitten
2 years 24 human years Young Adult
4 years 32 human years Young Adult
6 years 40 human years Young Adult
8 years 48 human years Mature
10 years 56 human years Senior
12 years 64 human years Senior
14 years 72 human years Super Senior
16 years 80 human years Super Senior
18 years 88 human years Super Senior

Cat Life Stages

Kitten · 0–1 year

Rapid growth and exploration. Needs kitten-formula food (3–4 meals/day), vaccines, and early socialization.

Young Adult · 1–6 years

Active, healthy, and full of energy. Transition to adult food. Annual vet checkups.

Mature · 7–10 years

Metabolism begins to slow. Watch weight, start semi-annual vet visits, consider senior-formula food.

Senior · 11–14 years

More rest, possible joint stiffness. Bi-annual bloodwork recommended. Prioritize joint-support nutrition.

Super Senior · 15+ years

Requires extra care and monitoring. Keep warm, offer easy-to-chew food, and schedule frequent vet visits.