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Tortoise Nutrition Calculators and Tools

These calculators work out what and how much to feed a tortoise: daily calories, portion sizes, feeding schedules, water needs and which foods to keep away from it. All 2 are free, quick and based on tortoise reference data.

Nutrition2 tools

All 2 tortoise nutrition tools

Tortoise Nutrition tools: what they help with

These calculators work out what and how much to feed a tortoise: daily calories, portion sizes, feeding schedules, water needs and which foods to keep away from it. Diet is the single biggest thing most owners control. Getting portions right prevents obesity and the many problems that come with it in a tortoise.

What to know about nutrition and feeding for tortoises

A typical adult tortoise weighs 1-50 kg. Tortoises are herbivores, which shapes what you feed and how much.

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

Weigh food rather than using a cup or scoop. Measuring by volume is one of the most common reasons pets are overfed.

Other tortoise topics

Most questions lead to another. 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.

Nutrition tools for other pets

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

Frequently asked questions

How much should I feed my tortoise?

It depends on body weight, age and activity. The tortoise food and calorie calculators give a daily starting amount, which you then adjust based on body condition.

How much should an adult tortoise weigh?

A typical adult tortoise weighs 1-50 kg, though frame and body condition matter as much as the number.

Which tortoise nutrition tool should I use first?

Most people start with the Tortoise Feeding Schedule Planner, the most used tool in this group. If your question is more specific, the list above describes what each of the 2 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.