Sea otter lifespan and age in human years
Average lifespan about 15 years
Sea otter live about 15 years on average. Below is a chart converting Sea otter age into human years, plus a calculator.
How old in human years?
Age
Sea otter age chart in human years
Shaded rows are equivalent to human age 60+.
| Sea otter | Human age | Stage |
|---|---|---|
| 1 yr | 4 | Child |
| 2 yr | 9 | Child |
| 3 yr | 14 | Teen |
| 4 yr | 18 | Teen |
| 5 yr | 24 | Adult |
| 6 yr | 30 | Adult |
| 7 yr | 36 | Adult |
| 8 yr | 42 | Middle age |
| 9 yr | 48 | Middle age |
| 10 yr | 54 | Middle age |
| 11 yr | 60 | Senior |
| 12 yr | 66 | Senior |
| 13 yr | 72 | Senior |
| 14 yr | 78 | Elderly |
| 15 yr | 84 | Elderly |
| 16 yr | 90 | Elderly |
| 17 yr | 96 | Elderly |
| 18 yr | 102 | Elderly |
| 19 yr | 108 | Elderly |
| 20 yr | 114 | Elderly |
| 21 yr | 120 | Elderly |
| 22 yr | 126 | Elderly |
| 23 yr | 132 | Elderly |
Sea otter profile
| Classification | Mammalia > Carnivora > Mustelidae |
|---|---|
| Scientific name | Enhydra lutris |
| Adult weight | about 26 kg |
| Age of maturity | 2.7 years |
| Gestation | about 140 days |
| Litter / clutch size | 1 |
| Longest recorded | 27 years (captivity) |
Sources
How we convert ages: method.
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