Calories in Raw Sweet Onions

Instrument — Food Profile
100g
Calories

32.00

kcal
Protein

0.80

g
Carbs

7.55

g
Fat

0.08

g
Fiber

0.90

g
Sugar

5.02

g

Curious about the nutritional profile of raw sweet onions? Whether you are tracking your macros or just want to know how many calories they contain, you are in the right place. A standard 100g serving of raw sweet onions provides 32.00 calories, 0.80g of protein, and 7.55g of carbs.

Serving Size Variations

Portion Size Calories Protein Carbs Fat
100g (Standard) 32.00 kcal 0.80g 7.55g 0.08g
1 oz (28g) 9 kcal 0.2g 2.1g 0.0g
NLEA serving (148g) 47 kcal 1.2g 11.2g 0.1g
onion (331g) 106 kcal 2.6g 25.0g 0.3g

Vitamins & Minerals

Nutrient Amount
Vitamin C 4.80 mg
Vitamin E 0.02 mg
Vitamin K 0.30 mcg
Thiamin (B1) 0.04 mg
Riboflavin (B2) 0.02 mg
Niacin (B3) 0.13 mg
Pantothenic Acid (B5) 0.10 mg
Vitamin B6 0.13 mg
Folate (B9) 23.00 mcg
Calcium 20.00 mg
Iron 0.26 mg
Magnesium 9.00 mg
Potassium 119.00 mg
Sodium 8.00 mg
Zinc 0.13 mg
📊 Data Source: USDA FoodData Central Database (FDC ID: 170008)
🩺 Reviewed by Ashwini Yadav Last Updated: July 2026

Nutrition FAQs

How many calories are in raw sweet onions?

100 grams of raw sweet onions contains exactly 32.00 calories.

How many calories are in 1 nlea serving of raw sweet onions?

A single nlea serving (148g) of raw sweet onions provides 47 calories.

How much protein does raw sweet onions have?

They contain 0.80g of protein per 100g, which is moderate.

How many carbs are in raw sweet onions for ketosis?

No, raw sweet onions have 7.55g of carbs per 100g, which may disrupt ketosis.