How Big Do Sulcata Tortoises Get?
Sulcatas reach 24 to 30 inches of shell and commonly exceed 100 pounds, making them the third-largest tortoise in the world. The gap between the hatchling people buy and the adult they get is the defining problem with the species.
Published adult size figures
| Figure | Value | Notes |
|---|---|---|
| Adult shell length | 24-30 in | Published range |
| Adult weight | Over 100 lb | Commonly exceeded |
| Rank | Third-largest tortoise in the world | After the Galapagos and Aldabra giants |
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
From palm-sized to over 100 pounds
That trajectory is the entire problem with this species. Hatchlings are cheap, small and appealing; adults need grazing land.
Growth continues for years
They do not reach adult size quickly, which lets owners postpone confronting the eventual requirement.
What that size means in practice
The enclosure decides whether you should keep one
Published outdoor pen figures run from 100 to 400 square feet per animal. Adults cannot be adequately housed indoors, and sources say so plainly.
They dig through things
Adults have been known to dig through drywall and will go under a fence that is not sunk. Size here translates directly into structural requirements.
Common questions
How big do sulcata tortoises get?
Adults reach 24 to 30 inches of shell length and commonly exceed 100 pounds. They are the third-largest tortoise species in the world after the Galapagos and Aldabra giants.
How long does it take a sulcata to get big?
Years. They grow steadily rather than suddenly, which unfortunately allows owners to postpone confronting an eventual requirement of grazing land and a heated shelter.
Can a full-grown sulcata live indoors?
No. Published guidance states adults cannot be adequately housed indoors and require large outdoor enclosures with room to roam, burrow and graze.