You can enter cat's age by years, months, weeks or days OR select the date of birth to compute human years. You can enter human years to find the equivalent cat years.



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Cat Years to Human Years Conversion
The conversion of cat years to human years
is a complex topic, with no onesizefitsall answer. This is because cats age differently than humans, and their development is influenced by a number of factors, including breed, lifestyle, and overall health. However, there are some general guidelines that can be used to estimate a cat's age in human years.
 There is a formula for cat years to human years that is similar to the one for dogs.
The formula for cat years to human years is as follows:
Human age = (Cat age  2) x 4 + 24 use this for cat age > 2
The first year of a cat's life is equivalent to about 15 human years. The second year of a cat's life is equivalent to about 9 human years
 Each year after the 2nd year is roughly equal to about 4 human years.
 This means that a 3yearold cat is about 28 years old in human years, a 5yearold cat is about 36 years old in human years, and a 10yearold cat is about 56 years old in human years.
 Cats age more quickly in their early years. This is because they are going through a period of rapid growth and development.
 Cats development slows down as they get older. This is similar to how humans develop.
 Indoor cats tend to live longer than outdoor cats. This is because they are less exposed to dangers such as predators, disease, and accidents.
 Some breeds of cats live longer than others. For example, Maine Coons and Ragdolls have an average lifespan of 1316 years, while Burmese and Siamese cats have an average lifespan of 1215 years.
Note: The above content has inputs from Bard, the AI model from Google
Cat's Age Chart  Cat Years to Human Years Conversion Table
Age in Cat Years  Age in Human Years 

1 year in cat years  15 years 
2 years in cat years  24 years 
3 years in cat years  28 years 
4 years in cat years  32 years 
5 years in cat years  36 years 
6 years in cat years  40 years 
7 years in cat years  44 years 
8 years in cat years  48 years 
9 years in cat years  52 years 
10 years in cat years  56 years 
11 years in cat years  60 years 
12 years in cat years  64 years 
13 years in cat years  68 years 
14 years in cat years  72 years 
15 years in cat years  76 years 
16 years in cat years  80 years 
17 years in cat years  84 years 
18 years in cat years  88 years 
19 years in cat years  92 years 
20 years in cat years  96 years 
Frequently Asked Questions on Cat Years Calculator
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
15 years.
15 years.
24 years.
24 years.
28 years.
28 years.
36 years.
36 years.
32 years.
32 years.
44 years.
44 years.
56 years.
56 years.
76 years.
76 years.
40 years.
40 years.
48 years.
48 years.
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
15 human years equals the 1 year of a cat’s life. Year 2 for a cat equals to 24 human years. And after that, each human year it increases by 4 years every year for a cat.
0.07 years.
0.07 years.
52 years.
52 years.
44 years.
44 years.
76 years.
76 years.
64 years.
64 years.
60 years.
60 years.
72 years.
72 years.