An Arctic tern aged 14 years 2 months is like a human aged 57 years 6 months
If an Arctic tern is 14 years 2 months old, that is like a human aged about 57 years 6 months (accuracy ±5 months). The calculation uses the average and maximum lifespans and the age of maturity of both species, so the ratio is not linear.
How old is an Arctic tern aged 14 years 2 months in human years?
About 57 years 6 months (accuracy ±5 months).
Why is the age not converted linearly?
Species age unevenly: childhood, maturity and old age take a different share of life, so the calculator matches the life stages of both species.
Can I choose another age or species?
Yes, the page has the calculator: pick the species, sex and age, and the result is recalculated.