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Eastern diamondback rattlesnake

Eastern diamondback rattlesnake lifespan and age in human years

Longest recorded 22.8 years

🏆 The longest-lived eastern diamondback rattlesnake on record reached 22.8 years in captivity.

Eastern diamondback rattlesnake (Crotalus adamanteus). The oldest known individual lived 22.8 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

Eastern diamondback rattlesnake age chart in human years

Shaded rows are equivalent to human age 60+.

Eastern diamondback rattlesnakeHuman ageStage
1 yr5Child
2 yr11Child
3 yr16Teen
4 yr21Adult
5 yr26Adult
6 yr32Adult
7 yr37Adult
8 yr42Middle age
9 yr47Middle age
10 yr53Middle age
11 yr58Middle age
12 yr63Senior
13 yr68Senior
14 yr74Senior
15 yr79Elderly
16 yr84Elderly
17 yr89Elderly
18 yr95Elderly
19 yr100Elderly
20 yr105Elderly
21 yr111Elderly
22 yr116Elderly
23 yr121Elderly
24 yr126Elderly
25 yr132Elderly
26 yr137Elderly
27 yr142Elderly
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Eastern diamondback rattlesnake profile

ClassificationReptilia > Squamata > Viperidae
Scientific nameCrotalus adamanteus
Adult weightabout 5.7 kg
Longest recorded22.8 years (captivity)

Sources

How we convert ages: method.

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