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Fruits & Vegetables

Onion (Chopped)

1 cup = 160 g

One level US cup of onion weighs 160 g (5.6 oz). A tablespoon is 10 g. Per 100 g: 40 calories and 1.1 g protein.

160 gGrams
5.6 ozOunces
64Calories
1.8 gProtein
14.9 gCarbs
0.16 gFat
2.7 gFiber
Cup size:

Measures at a glance

Onion (Chopped)
MeasureGramsOuncesCaloriesProteinCarbsFat
1 teaspoon3.3 g0.12 oz1.30.04 g0.31 g0 g
1 tablespoon10 g0.35 oz40.11 g0.93 g0.01 g
¼ cup40 g1.4 oz160.44 g3.7 g0.04 g
⅓ cup53.3 g1.9 oz21.30.59 g5 g0.05 g
½ cup80 g2.8 oz320.88 g7.4 g0.08 g
1 cup160 g5.6 oz641.8 g14.9 g0.16 g
2 cups320 g11.3 oz1283.5 g29.8 g0.32 g

Nutrition

40Calories per 100 g
64Calories per cup
4 mgSodium per 100 g
Protein1.1 g
Carbs9.3 g
Fat0.1 g
Fiber1.7 g
Sugar4.2 g

Bars show grams per 100 g. Calories come 10% from protein, 88% from carbs and 2% from fat.

Onion gets most of its calories from carbohydrates: about 10% from protein, 88% from carbs and 2% from fat. One cup (160 g) has 64 calories, 1.8 g protein and 2.7 g fiber.

How to measure

Fill the cup to the top and level it with a spatula.

For this ingredient: One medium onion gives about 1 cup chopped.

Tips from the kitchen

  • Mashed fruit weighs more per cup than sliced fruit.
  • Weigh after peeling for accurate macros.
  • Frozen fruit measures the same as fresh by weight.

Common questions

How many grams is 1 cup of onion?

One level US cup of onion weighs about 160 g (5.6 oz). One medium onion gives about 1 cup chopped.

How many grams is 1 tablespoon of onion?

One level tablespoon weighs about 10 g, and one teaspoon about 3.3 g.

How much protein is in 100 g of onion?

100 g has 1.1 g protein, 9.3 g carbs, 0.1 g fat and 40 calories.

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