USDA reference food · Legumes and Legume Products
Tofu, raw, firm, prepared with calcium sulfate
1/2 cup of tofu, raw, firm, prepared with calcium sulfate (126 g) has 180 calories, 22g of protein, 11g of fat and 3g of fiber (USDA FoodData Central, SR Legacy, FDC 172475). It is one of 13 USDA descriptions of tofu.
FoodData Central 172475, SR Legacy, in the April 30, 2026 release; USDA record.
Nutrition Facts
* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. Protein % DV here is not corrected for protein quality.
USDA values per 100 g (SR Legacy), scaled to the portion. Check the USDA record.
- Protein per 100 g
- 17.3g
- more than 67% of 8,218 USDA reference foods
- Calories per 100 g
- 144
- more than 41% of reference foods
- Fiber per 100 g
- 2.3g
- more than 73% of reference foods
What a portion gives you
Ticks: 5% of the Daily Value (FDA: low) and 20% (high)
Source: USDA FoodData Central, SR Legacy (FDC 172475); FDA Daily Values, 21 CFR 101.9.
Also rich in
- Manganese1.5 mg in 1/2 cup (126 g), 65% of the Daily Value
- Copper0.5 mg in 1/2 cup (126 g), 53% of the Daily Value
- Selenium22 µg in 1/2 cup (126 g), 40% of the Daily Value
- Phosphorus239 mg in 1/2 cup (126 g), 19% of the Daily Value
- Zinc2.0 mg in 1/2 cup (126 g), 18% of the Daily Value
- Magnesium73 mg in 1/2 cup (126 g), 17% of the Daily Value
- Thiamin0.2 mg in 1/2 cup (126 g), 17% of the Daily Value
Source: USDA FoodData Central (FDC 172475), every nutrient the record reports; FDA Daily Values, 21 CFR 101.9.
Where the calories come from: 7% carbohydrate, 49% fat and 44% protein (4 calories a gram of protein or carbohydrate, 9 of fat).
Where it sits among USDA reference foods
| Per 100 g | This food | Share with less |
|---|---|---|
| Calories | 144 | 41% |
| Protein | 17.3 g | 67% |
| Total fat | 8.72 g | 63% |
| Carbohydrate | 2.78 g | 37% |
| Fiber | 2.30 g | 73% |
| Sodium | 14.0 mg | 20% |
Source: USDA FoodData Central, SR Legacy and Foundation Foods: the 7,472 to 8,218 reference foods that report each value; the share of them with less per 100 g.
Every nutrient in this record (59)
The portion is 1/2 cup (126 g); % DV is for that portion.
Energy, macronutrients and sugars (12)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Protein | 21.8 g | 17.3 g | 44% |
| Total lipid (fat) | 11.0 g | 8.72 g | 14% |
| Carbohydrate, by difference | 3.50 g | 2.78 g | 1% |
| Ash | 1.76 g | 1.40 g | |
| Energy | 181 kcal | 144 kcal | |
| Water | 88.0 g | 69.8 g | |
| Fiber, total dietary | 2.90 g | 2.30 g | 10% |
| Cholesterol | 0 mg | 0 mg | 0% |
| Fatty acids, total trans | 0 g | 0 g | |
| Fatty acids, total saturated | 1.59 g | 1.26 g | 8% |
| Fatty acids, total monounsaturated | 2.43 g | 1.93 g | |
| Fatty acids, total polyunsaturated | 6.20 g | 4.92 g |
Minerals (10)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Calcium, Ca | 861 mg | 683 mg | 66% |
| Iron, Fe | 3.35 mg | 2.66 mg | 19% |
| Magnesium, Mg | 73.1 mg | 58.0 mg | 17% |
| Phosphorus, P | 239 mg | 190 mg | 19% |
| Potassium, K | 299 mg | 237 mg | 6% |
| Sodium, Na | 17.6 mg | 14.0 mg | 1% |
| Zinc, Zn | 1.98 mg | 1.57 mg | 18% |
| Copper, Cu | 0.48 mg | 0.38 mg | 53% |
| Manganese, Mn | 1.49 mg | 1.18 mg | 65% |
| Selenium, Se | 21.9 µg | 17.4 µg | 40% |
Vitamins (12)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Vitamin D (D2 + D3) | 0 µg | 0 µg | 0% |
| Vitamin C, total ascorbic acid | 0.25 mg | 0.20 mg | 0% |
| Thiamin | 0.20 mg | 0.16 mg | 17% |
| Riboflavin | 0.13 mg | 0.10 mg | 10% |
| Niacin | 0.48 mg | 0.38 mg | 3% |
| Pantothenic acid | 0.17 mg | 0.13 mg | |
| Vitamin B-6 | 0.12 mg | 0.092 mg | 7% |
| Folate, total | 36.5 µg | 29.0 µg | |
| Vitamin B-12 | 0 µg | 0 µg | 0% |
| Folic acid | 0 µg | 0 µg | |
| Folate, food | 36.5 µg | 29.0 µg | |
| Folate, DFE | 36.5 µg | 29.0 µg | 9% |
Amino acids (18)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Tryptophan | 0.30 g | 0.23 g | |
| Threonine | 0.99 g | 0.79 g | |
| Isoleucine | 1.07 g | 0.85 g | |
| Leucine | 1.75 g | 1.39 g | |
| Lysine | 1.11 g | 0.88 g | |
| Methionine | 0.27 g | 0.21 g | |
| Cystine | 0.072 g | 0.057 g | |
| Phenylalanine | 1.05 g | 0.83 g | |
| Tyrosine | 0.88 g | 0.70 g | |
| Valine | 1.10 g | 0.87 g | |
| Arginine | 1.72 g | 1.37 g | |
| Histidine | 0.54 g | 0.43 g | |
| Alanine | 0.97 g | 0.77 g | |
| Aspartic acid | 2.57 g | 2.04 g | |
| Glutamic acid | 4.14 g | 3.29 g | |
| Glycine | 0.92 g | 0.73 g | |
| Proline | 1.37 g | 1.08 g | |
| Serine | 1.28 g | 1.01 g |
Fatty acids (7)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| SFA 14:0 | 0.030 g | 0.024 g | |
| SFA 16:0 | 1.17 g | 0.93 g | |
| SFA 18:0 | 0.39 g | 0.31 g | |
| MUFA 18:1 | 2.40 g | 1.90 g | |
| PUFA 18:2 | 5.47 g | 4.34 g | |
| PUFA 18:3 | 0.73 g | 0.58 g | |
| MUFA 16:1 | 0.030 g | 0.024 g |
Source: USDA FoodData Central, FDC 172475: every value the record reports, per 100 g as USDA gives it and scaled to the portion; Daily Values: 21 CFR 101.9.
Other ways to eat tofu
USDA lists 13 preparations of tofu. The tofu page puts them side by side, per 100 g and per portion.
Next questions
- Every common food in legumes and legume productscalories, protein, fat and carbohydrate side by side
- Foods A to Z
- Compare two foods side by sidecalories, sugar, sodium and protein per 100 g and per portion
Sources for this page
- USDA FoodData Central
- this record and every record it is compared with, April 30, 2026 release. fdc.nal.usda.gov
- FoodData Central documentation
- what branded, SR Legacy, Foundation and survey records are. fdc.nal.usda.gov
- USDA Food and Nutrient Database for Dietary Studies
- survey foods and their household portions. ars.usda.gov
- 21 CFR 101.9, Nutrition labeling of food
- the label format, its rounding and the Daily Values. ecfr.gov
- 21 CFR 101 subpart D, Nutrient content claims
- the FDA thresholds the comparisons count. ecfr.gov
- FDA, How to Understand and Use the Nutrition Facts Label
- the 5% and 20% Daily Value rule. fda.gov