Common green iguana lifespan and age in human years
Longest recorded 19.8 years
🏆 The longest-lived common green iguana on record reached 19.8 years in captivity.
Common green iguana (Iguana iguana). The oldest known individual lived 19.8 years; this chart maps that record to a human age of 120. Most individuals live considerably shorter lives than the record.
- Reaches adulthood at about 4.5 years
- Adult weight about 1.53 kg
How old in human years?
Age
Common green iguana age chart in human years
Shaded rows are equivalent to human age 60+.
| Common green iguana | Human age | Stage |
|---|---|---|
| 1 yr | 4 | Child |
| 2 yr | 8 | Child |
| 3 yr | 12 | Child |
| 4 yr | 16 | Teen |
| 5 yr | 21 | Adult |
| 6 yr | 28 | Adult |
| 7 yr | 35 | Adult |
| 8 yr | 41 | Middle age |
| 9 yr | 48 | Middle age |
| 10 yr | 55 | Middle age |
| 11 yr | 61 | Senior |
| 12 yr | 68 | Senior |
| 13 yr | 75 | Senior |
| 14 yr | 81 | Elderly |
| 15 yr | 88 | Elderly |
| 16 yr | 95 | Elderly |
| 17 yr | 101 | Elderly |
| 18 yr | 108 | Elderly |
| 19 yr | 115 | Elderly |
| 20 yr | 121 | Elderly |
| 21 yr | 128 | Elderly |
| 22 yr | 135 | Elderly |
| 23 yr | 141 | Elderly |
Common green iguana profile
| Classification | Reptilia > Squamata > Iguanidae |
|---|---|
| Scientific name | Iguana iguana |
| Adult weight | about 1.5 kg |
| Age of maturity | 4.5 years |
| Longest recorded | 19.8 years (captivity) |
Sources
How we convert ages: method.
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