1 Free Tools
TortoiseCalc
Enter your tortoise's shell length, life stage, and housing type to get a minimum floor-area guideline based on commonly cited tortoise-keeping rules of thumb — before you buy or build the enclosure.
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About TortoiseCalc
TortoiseCalc is a free enclosure size calculator for pet tortoise and box turtle keepers. Enter shell length, tortoise count, life stage, and housing type to get a minimum floor-area guideline before buying a tank, table, or building an outdoor pen.
The calculator runs entirely in your browser — no account, no data leaving your device. Share a result by URL, or bookmark it to recheck as your tortoise grows.