getabiteFirm tofu
683 mg calcium per 100 g
0.4 × 1 block (approx.)
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Calcium from Firm tofu
Firm tofu (as sold) has 683 mg calcium per 100 g. A typical portion is 1 block (approx.) (400 g).
Ready examples
For 500 mg calcium
500 mg calcium = 0.2 × 1 block (approx.) (Firm tofu)
73 g of food · 105 kcal
73 g of food · 105 kcal
For 1,000 mg calcium
1,000 mg calcium = 0.4 × 1 block (approx.) (Firm tofu)
146 g of food · 211 kcal
146 g of food · 211 kcal
Amounts use USDA FoodData Central for Firm tofu, retrieved September 22, 2026. Cooking form is the form you eat.
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Daily reference helper
Population reference only. Not personal advice.
1,000 mg calcium per day. Source: WHO/FAO Vitamin and mineral requirements, 2004 (adults). As of January 1, 2004.
