How old is your dog or cat in human years

The “one year equals seven” rule is wrong: the first year of a dog or cat is roughly 15 human years, and after that it depends on the species and size. Enter your pet’s age and we’ll convert it to human years.

Your pet
Adult dog’s weight

Dog age in human years: chart

Based on the American Veterinary Medical Association (AVMA) chart. Size is by the adult dog’s weight.

DogSmallup to 9 kgMedium10–23 kgLarge24–41 kgGiant42 kg and over
1 year15151512
2 years24242422
3 years28282831
4 years32323238
5 years36363645
6 years40424549
7 years44475056
8 years48515564
9 years52566171
10 years56606679
11 years60657286
12 years64697793
13 years687482100
14 years727888107
15 years768393114
16 years808799121

Cat age in human years: chart

Based on the feline veterinary scale (AAFP and iCatCare): 15 at one year, 24 at two, then 4 for every year.

CatHuman yearsStage
1 year15Young
2 years24Young
3 years28Young
4 years32Young
5 years36Young
6 years40Young
7 years44Adultă
8 years48Adultă
9 years52Adultă
10 years56Adultă
11 years60Senior
12 years64Senior
13 years68Senior
14 years72Senior
15 years76Senior
16 years80Senior
17 years84Senior
18 years88Senior
19 years92Senior
20 years96Senior

This is an approximate conversion: dogs and cats don’t age evenly, and a lot depends on breed, health and care. Your vet can tell you more about your pet’s condition.

Keep track of weight, vaccinations and vet visits

In micamic your pet gets an electronic passport: birth date, vaccination and parasite treatment schedule with reminders, weight month by month. It becomes even more useful as your pet gets older. Free.

Create a pet passport

FAQ

Is one dog year really equal to seven human years?

No, that’s too rough. In its first year a dog goes through what takes a human about 15 years, and about 9 more in the second. After that small dogs age about 4 human years per year, while large and giant dogs age 5–7.

How old is a cat in human years?

A one-year-old cat is about 15 in human years, a two-year-old about 24. After that each cat year counts as 4 human years: a 10-year-old cat is about 56, and a 15-year-old about 76.

Why do large dogs age faster?

Large breeds grow faster and start ageing earlier, so on average they live shorter lives than small ones. A Great Dane is already a senior at 7, while a toy terrier of the same age is in its prime.

At what age are dogs and cats considered seniors?

Small dogs from about 10, medium from 9, large from 8, giant from 6. Cats after 10. From this age vets recommend a check-up with blood tests every six months.

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