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Tortoise Housing Calculators and Tools

These calculators size your tortoise's living space: the minimum and recommended dimensions, how much bedding or substrate to buy and what fits in the space you have. The tool is free, quick and based on tortoise reference data.

Housing1 tool

The tortoise housing tool

Tortoise Housing tools: what they help with

These calculators size your tortoise's living space: the minimum and recommended dimensions, how much bedding or substrate to buy and what fits in the space you have. Too little space is one of the most common welfare problems in pets. The right size gives a tortoise room to move, rest and behave normally.

What to know about housing and enclosure size for tortoises

Tortoises are genuinely lifelong pets that frequently outlive their owners. They need a large open tortoise table rather than a glass vivarium, a high-fiber weed-based diet, UVB, and species-correct humidity. Target humidity is around 40-60%.

Tortoise quick facts

Reference values for tortoises from the species data behind this tool.
MeasureTortoise
Typical lifespan50–100 years
Adult weight2.2–110 lb (1–50 kg)
DietHerbivore
Mature atAbout 12 years
Egg incubation60–120 days
Clutch size3–15 eggs
Humidity40–60%

A practical tip

Treat the minimum as the floor, not the goal. Bigger is almost always better, especially for active or social species.

Other tortoise topics

Tortoise care rarely sits in one box. You may also find these useful: tortoise age tools, tortoise behavior tools, tortoise breeding tools and tortoise cost tools. Or see every tortoise tool in one place.

Housing tools for other pets

The same kind of tool exists for other species, each using that animal's own reference data: turtle housing, gecko housing, bearded dragon housing and iguana housing.

Frequently asked questions

What size enclosure does a tortoise need?

The housing calculators give a minimum and a recommended size based on adult body size and activity level, drawn from welfare guidance for the species.

What humidity does a tortoise need?

Aim for about 40–60% relative humidity.

Which tortoise housing tool should I use first?

Most people start with the Tortoise Enclosure Size Calculator, the most used tool in this group. If your question is more specific, the list above describes what each of the 1 tools does.

How accurate are the results?

They are estimates based on published reference data for tortoises, and each tool lists its sources. Individual animals vary, so treat results as a guide and check health decisions with your vet.