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How Big Do Blue-Tongued Skinks Get?

Blue-Tongued Skink (Tiliqua spp.)
Photo: Yi-Wen via Wikimedia Commons, CC BY-SA 4.0

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

FigureValueNotes
Adult16-24 inStocky, heavy build
Northern subspeciesToward the larger endT. scincoides intermedia
Indonesian and Centralian speciesSlightly smallerWithin 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.