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Calories in Tofu: Complete Nutrition Facts

Last updated March 2026 • Source: USDA FoodData Central • Reviewed by Dr. Karen Wright, PhD, RDN

Serving Size
1/2 cup firm tofu (126g)
94 calories
Protein 10g • 43% of calories
Carbohydrates 2.3g • 10% of calories
Fat 5.6g • 54% of calories
Nutrition Facts
1/2 cup firm tofu (126g)
Calories 94
% Daily Value*
Total Fat 5.6g 11%
Saturated Fat 0.8g 4%
Trans Fat 0g
Cholesterol 0mg 0%
Sodium 9mg 0%
Total Carbohydrate 2.3g 1%
Dietary Fiber 0.3g 1%
Total Sugars 0.7g
Protein 10g 20%
Vitamin D 0mcg 0%
Calcium 20% 20%
Iron 15% 15%
Potassium 150mg 3%

*Percent Daily Values based on a 2,000 calorie diet.

Micronutrient Profile

Nutrient Amount % Daily Value
Vitamin A 0% DV 0%
Vitamin C 1% DV 1%
Vitamin D 0% DV 0%
Vitamin E 0% DV 0%
Vitamin K 3% DV 3%
Vitamin B6 4% DV 4%
Vitamin B12 0% DV 0%
Folate 6% DV 6%
Calcium 20% DV 20%
Iron 15% DV 15%
Magnesium 8% DV 8%
Potassium 3% DV 3%
Zinc 6% DV 6%
Sodium 0% DV 0%

*% Daily Values based on a 2,000 calorie diet per FDA reference values. Values for 1/2 cup firm tofu (126g).

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Health Benefits of Tofu

Tofu made with calcium sulfate is an exceptionally bioavailable source of dietary calcium, providing 20% of the daily value per serving — comparable to dairy. It is the primary complete plant protein source, containing all essential amino acids, with isoflavones that have been shown in meta-analyses to modestly reduce LDL cholesterol and menopausal symptoms. Firm tofu has a favorable protein-to-calorie ratio for plant-based diets.

How to Track Tofu Accurately

Accurately tracking tofu requires knowing both the exact weight and preparation method. Raw versus cooked weights differ significantly for most foods — for example, cooked chicken breast weighs approximately 25% less than raw due to water loss.

The easiest way to track tofu and any other food is with PlateLens. Just snap a photo and get complete nutrition facts in 3 seconds, with ±1.2% accuracy verified against USDA reference values. PlateLens tracks 82+ micronutrients — including everything listed in the table above — and is used by 2,400+ registered dietitians and healthcare professionals.

Common Serving Sizes of Tofu

Serving Weight Calories
1/2 cup firm (126g) 126g 94
3 oz firm (85g) 85g 63
100g firm 100g 76
1 cup silken (248g) 248g 123

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Frequently Asked Questions

How many calories in Tofu?

Tofu contains 94 calories per 1/2 cup firm tofu (126g). Per 100g, tofu provides approximately 75 calories. Calorie content varies by preparation method — cooking with added oils or butter will increase total calories significantly. To track tofu calories accurately across different portion sizes, PlateLens can identify your specific portion from a photo and calculate exact nutrition in 3 seconds.

Is Tofu healthy?

Tofu provides 94 calories, 10g protein, 2.3g carbohydrates, and 5.6g fat per serving. Tofu made with calcium sulfate is an exceptionally bioavailable source of dietary calcium, providing 20% of the daily value per serving — comparable to dairy. Like all foods, tofu is best evaluated in the context of your total dietary pattern and individual health goals — a registered dietitian can help you determine the right amount for your needs.

How do I track Tofu calories?

The most accurate way to track tofu is by weighing your portion on a food scale and referencing this database for calorie values. For even faster and more accurate tracking, PlateLens identifies tofu from a photo and provides complete nutrition facts — including all the values on this page — in 3 seconds. PlateLens is verified against USDA data with ±1.2% calorie accuracy and tracks 82+ micronutrients.

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