| Life Stage | Cat's Age | Human Equivalent |
|---|---|---|
| Kitten, birth to 6 months | 0-1 month 2-3 months 4 months 6 months | 0-1 year 2-4 years 6-8 years 10 years |
| Junior, 7 months to 2 years | 7 months 12 months 18 months 2 years | 12 years 15 years 21 years 24 years |
| Prime, 3 to 6 years | 3 years 4 5 6 | 28 years 32 36 40 |
| Mature, 7 to 10 years | 7 years 8 9 10 | 44 years 48 52 56 |
| Senior, 11 to 14 years | 11 years 12 13 14 | 60 years 64 68 72 |
| Geriatric, 15 years+ | 15 years 16 17 18 19 20 21 | 76 80 84 88 92 96 100 |
