Is there a difference between dog and cat years?

Answer 1

Yes, there's a difference between cat years and dog years. What we call "dog years"(to calculate a dog's "human" age), is simple. For every human year a dog has lived, that's 7 "dog years". So a 2 year old dog is 14 dog years, while a 5 year old dog is 35 dog years. A cat's age is a little more tricky. Different sources vary slightly, but this is the most common way. The first year of a cat's life is 15 "cat years". Then you add 9 "cat years" for the second year, so a 2 "human year" old cat is 24 "cat years". For every "human year" after that, you add 4 "cat years". An 8 "human year" old cat would be 48 "cat years".

"human year" = 365 days, one revolution around the Sun

"cat year" = the comparative "year" for a cat based on milestones, such as walking, sexual maturity

Answer 2

Dog years (used to estimate a dog's maturity and aging) is usually roughly 10.5 dog years per human year for the first 2 years, then 4 dog years per human year for each year after.

Cat years (used to estimate a cat's maturity and aging) is roughly 15 years for the first year, 10 more for the second year, then 4 cat years for each year thereafter.