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Japanese four-lined ratsnake

Japanese four-lined ratsnake lifespan and age in human years

Longest recorded 16.8 years

🏆 The longest-lived japanese four-lined ratsnake on record reached 16.8 years in captivity.

Japanese four-lined ratsnake (Elaphe quadrivirgata). The oldest known individual lived 16.8 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.

How old in human years?

Age

Japanese four-lined ratsnake age chart in human years

Shaded rows are equivalent to human age 60+.

Japanese four-lined ratsnakeHuman ageStage
1 yr4Child
2 yr9Child
3 yr14Teen
4 yr18Teen
5 yr26Adult
6 yr34Adult
7 yr42Middle age
8 yr50Middle age
9 yr58Middle age
10 yr66Senior
11 yr74Senior
12 yr82Elderly
13 yr90Elderly
14 yr98Elderly
15 yr106Elderly
16 yr114Elderly
17 yr122Elderly
18 yr130Elderly
19 yr138Elderly
20 yr146Elderly
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Japanese four-lined ratsnake profile

ClassificationReptilia > Squamata > Colubridae
Scientific nameElaphe quadrivirgata
Adult weightabout 6.6 kg
Age of maturity4 years
Longest recorded16.8 years (captivity)

Sources

How we convert ages: method.

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