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Free tool · Community Pet Care

How old is my cat or dog in human years?

Convert cat or dog years to human years — adjusted for your dog's size — and see which life stage your pet is in.

In human years

years old

Young adult

A yearly check-up and booster, weight control, and deworming every 3 months.

Everything is calculated on your device — nothing is stored or sent. This is general guidance; ask a vet about your own pet.

The charts we use

Cats — from the 2021 AAHA/AAFP Feline Life Stage Guidelines:

1 year ≈ 15 human years
2 years ≈ 24 human years
Each year after ≈ +4 human years

Dogs — a size-adjusted chart widely used by veterinarians (AVMA):

Dog age	Small (≤9 kg)	Medium (10–22 kg)	Large (23–40 kg)	Giant (>40 kg)
1	15	15	15	12
2	24	24	24	22
5	36	36	36	45
7	44	47	50	56
10	56	60	66	79
13	68	74	82	100
16	80	87	99	121

Life stages and what they mean for care

Stage	Cats	Care focus
Kitten	0–1 year	Vaccines, deworming, spay/neuter, nutrition for growth
Young adult	1–6 years	Yearly check-up and boosters, weight control
Mature adult	7–10 years	Dental care, watch weight and thirst
Senior	10+ years	Check-ups every 6 months, blood tests for kidneys and thyroid

Knowing your pet’s life stage helps you plan the right food (see the food calculator) and the right check-up frequency.

Frequently asked questions

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

About 15 human years. A 2-year-old cat is about 24, and every year after adds roughly 4 — so a 10-year-old cat is about 56.

Is one dog year really seven human years?

No. Dogs mature much faster in the first two years (a 1-year-old dog is about 15), and after that the rate depends on size — large and giant breeds age faster than small ones.

When is a cat considered senior?

The AAFP and AAHA feline life-stage guidelines call cats seniors from about 10 years. Cats from 7 to 10 years are "mature adults" and benefit from twice-yearly check-ups.

When is a dog considered senior?

In the last quarter of its expected lifespan — around 10–12 years for small dogs, 8–9 for large dogs and 6–7 for giant breeds.

Services

Check-up & consultation A check-up at Community Pet Care is a full nose-to-tail examination by a registered veterinarian, followed by a plain-language explanation and a written care plan. Learn more

Free tools

Pet food calculator Daily calories, grams per day and grams per meal — from your pet's weight, age and the food label. Open tool Vaccination schedule Enter your pet's birthday and get every vaccine date — rabies, cat flu, DHPPi+L — as phone reminders. Open tool

Guides

Everyday care 2 min read

New Kitten Checklist (Bangladesh) — Your First Week at Home

Bringing home a kitten in Bangladesh? What to buy, what to feed, when to visit the vet, and the mistakes to avoid in the first week — from vets in Rangpur.

Updated 28 Sept 2026

Worried about your pet right now? Talk to a vet.

Call or WhatsApp — we answer day and night. For everything else, walk in any day from 9 AM to 10 PM.

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