How old is a 3-month-old kitten in human years?
≈ 4 human years.
All baby teeth are in and play is constant — this is the earliest a kitten should leave the litter.
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
| 1 months | 1 human years |
|---|---|
| 2 months | 3 human years |
| 3 months | 4 human years |
| 4 months | 5 human years |
| 5 months | 6 human years |
| 6 months | 8 human years |
| 12 months | 15 human years |