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How Big Do Blue-Tongued Skinks Get?

Blue-tongued skinks reach 16 to 24 inches with a stocky, heavy build on short legs. Northern subspecies run largest, and the commonly published adult enclosure is 60 by 24 by 24 inches.
Published adult size figures
| Figure | Value | Notes |
|---|---|---|
| Adult | 16-24 in | Stocky, heavy build |
| Northern subspecies | Toward the larger end | T. scincoides intermedia |
| Indonesian and Centralian species | Slightly smaller | Within the genus |
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
Blue tongues are live-bearers, so they start larger than an egg-laying lizard of similar adult size.
Sexes are close in size
Roughly equal, though males may have slightly broader heads.
What that size means in practice
60 by 24 by 24 inches for one adult
The commonly published minimum. They are terrestrial and active foragers, so floor length is what matters.
Heavy-bodied on short legs
Which makes floor space more useful than height and makes climbing furniture largely irrelevant.
Common questions
How big do blue-tongued skinks get?
Adults reach 16 to 24 inches with a heavy, stocky build. Northern blue tongues tend toward the larger end while Indonesian and Centralian species run slightly smaller.
How big an enclosure does a blue-tongued skink need?
A commonly published minimum of 60 by 24 by 24 inches for one adult. They are terrestrial active foragers, so floor length matters and height contributes little.
Do male or female blue tongues get bigger?
They are roughly equal in size, though males may have slightly broader heads. The subspecies affects adult size far more than the sex does.