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Koala

Koala lifespan and age in human years

Average lifespan about 12 years

Koala live about 12 years on average. Below is a chart converting Koala age into human years, plus a calculator.

How old in human years?

Age

Koala age chart in human years

Shaded rows are equivalent to human age 60+.

KoalaHuman ageStage
1 yr9Child
2 yr18Teen
3 yr25Adult
4 yr31Adult
5 yr38Adult
6 yr44Middle age
7 yr51Middle age
8 yr58Middle age
9 yr64Senior
10 yr71Senior
11 yr77Elderly
12 yr84Elderly
13 yr91Elderly
14 yr97Elderly
15 yr104Elderly
16 yr110Elderly
17 yr117Elderly
18 yr124Elderly
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Koala profile

ClassificationMammalia > Diprotodontia > Phascolarctidae
Scientific namePhascolarctos cinereus
Adult weightabout 9.3 kg
Age of maturity21 months
Gestationabout 31 days
Litter / clutch size1
Longest recorded22.1 years (captivity)

Sources

How we convert ages: method.

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