(s)he is 15 years old
about 7 years old.
About 81 is an answer using one method.
A 13 year old cat in cat years is 13 years old... in human years 68 years old.
36 years is 5 years in cat years x x x hope that answers it
A 21 year old cat is about 101 years old in human years.
Cat years are not figured like dog years. At one year a cat is sixteen, at 2 yrs. 21 and your 3 yr old cat is about 25 in human years. 8 yrs - 46 10 yrs - 54 15 yrs. - 74 20 yrs. - 94 May your kitty live a long and happy life. He is now in the prime of his life.
The oldest cat died at 30 years and they mostly die from 12-19 years of age.
9 months old
All you have to do is get the old cat use to the new one by holding them close together and let them kidda smell and see each other
A common guideline is that one cat year is equivalent to around four human years. This means that a two-year-old cat would be about 24 human years old. However, this can vary depending on the cat's breed and health.
If the cat is 13 years and 2 months in 'regular', human, years, then in cat years, how old it really is in their world, it is about 72 years. If it is 13 years in 2 months in cat years, if you go backwards (or at least backwards from our point of view) the cat is only 6 months old. I say all this because usually people ask this type of question like, "How old is your 13 year old and 2 month old Persian cat in cat years?" because the vet told them they were that age and they want to find out how old they are in CAT years. Your question was a little confusing to me on which one you meant, so I put in both ways. :)
it's about 15 years old,but l'm not really sure