Calories in 300g of Cooked Onions
300g of cooked onions (300 g) has 141 calories. That is 7% of a 2,000 calorie diet.
The calories come from 3.9 g of protein, 0.4 g of fat and 33 g of carbohydrates, a split of 10% protein, 2% fat and 88% carbs. For comparison, 250g of cooked onions has 118 and 500g of cooked onions has 235 calories. Burning 141 calories takes about 25 minutes of brisk walking or 11 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
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Cooked Onions calories by serving size
Common amounts of cooked onions with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 1 slice | 15 g | 7 | 0.2 g | 0 g | 1.6 g |
| 2 slices | 30 g | 14 | 0.4 g | 0 g | 3.3 g |
| 50g | 50 g | 24 | 0.6 g | 0.1 g | 5.5 g |
| 100g | 100 g | 47 | 1.3 g | 0.1 g | 11 g |
| 1/2 cup | 105 g | 49 | 1.4 g | 0.1 g | 12 g |
| 4 oz | 113 g | 53 | 1.5 g | 0.1 g | 12 g |
| 1 cooked onion | 148 g | 70 | 1.9 g | 0.2 g | 16 g |
| 200g | 200 g | 94 | 2.6 g | 0.2 g | 22 g |
| 1 cup | 210 g | 99 | 2.7 g | 0.3 g | 23 g |
| 2 cooked onions | 296 g | 139 | 3.8 g | 0.4 g | 32 g |
| 300g | 300 g | 141 | 3.9 g | 0.4 g | 33 g |
Cooked Onions vs similar foods
Calories per 100 g compared with other vegetables.
Cooked Onions: common questions
How many calories are in 300g of cooked onions?
300g of cooked onions weighs about 300 g and has 141 calories.
How much protein is in 300g of cooked onions?
300g of cooked onions has 3.9 g of protein, which is 8% of the 50 g Daily Value.
How many carbs are in 300g of cooked onions?
300g of cooked onions has 33 g of carbohydrates, including 6 g of fiber and 15 g of sugars.
How much cooked onions is 100 calories?
100 calories of cooked onions is 213 g, about 1 1/2 cooked onions.
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Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID No added fat: 2709950. Original description: Onions, cooked, no added fat. Portion weights are USDA household measures.