How old is a 8-month-old kitten in human years?
≈ 10 human years.
Close to adult size for most breeds — the big long-haired breeds keep growing for years.
Kittens front-load their ageing: the first twelve months are worth about 15 human years, which is why a six-month-old kitten is closer to a human pre-teen than a toddler.
Nearby ages
| 5 months | 6 human years |
|---|---|
| 6 months | 8 human years |
| 7 months | 9 human years |
| 8 months | 10 human years |
| 9 months | 11 human years |
| 10 months | 13 human years |
| 11 months | 14 human years |
| 12 months | 15 human years |