How Big Do Crested Geckos Get?
Crested geckos reach 4 to 5 inches snout-to-vent, plus a similar tail length when they still have one. Many adults do not, because a dropped crested gecko tail never grows back.
Published adult size figures
| Figure | Value | Notes |
|---|---|---|
| Adult snout-to-vent | 4-5 in | Published figure |
| Plus tail | 4-5 in when present | Many adults have none |
| Tail loss | Permanent | They do not regenerate |
Checked September 20, 2026 against the sources at the foot of this page. Where sources differ the range is shown rather than averaged.
Getting there
Hatchling to adult in 18 to 24 months
Slow and steady. Rushing it with heavy feeding does not help.
A dropped tail does not come back
Unlike leopard geckos, crested geckos do not regenerate the tail. Tailless adults are common and entirely healthy.
What that size means in practice
18 by 18 by 24 inches vertical for one adult
The commonly published minimum, with larger preferred. Height matters more than floor area for an arboreal gecko.
Measured snout-to-vent, not total length
Because so many adults are tailless, crested geckos are conventionally measured snout-to-vent. A total-length figure is not comparable between animals.
Common questions
How big do crested geckos get?
Adults reach 4 to 5 inches snout-to-vent, plus another 4 to 5 inches of tail where present. They are conventionally measured snout-to-vent because so many adults are tailless.
Do crested geckos regrow their tails?
No. Unlike leopard geckos they do not regenerate a dropped tail. Tailless adults are common, entirely healthy, and the loss is permanent.
How big an enclosure does a crested gecko need?
A commonly published minimum of 18 by 18 by 24 inches vertical for one adult, with larger preferred. Height matters more than floor space for an arboreal species.