Ready & Packaged Foods
All →Vegetables & Legumes
All →Desserts & Confectionery
All →Meat & Protein
All →Grains & Bakery
All →Beverages
All →Milk & Dairy
All →
Chopped onion adds flavor and nutrients to dishes.
In season: Spring · Summer · Autumn · Winter
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
½ cup (medium) of Chopped onion (60 g) has 24 calories. That works out to 40 calories per 100 g. It contains 5.6 g of carbs, 0.7 g of protein, 0.1 g of fat and 1 g of fiber. Its 4.4 mg of Vitamin C covers 5% of the Daily Value. Its glycemic index is 15 (low), so it raises blood sugar slowly.
Selected: ½ cup (medium) · 60 g
24
KCAL / 60G
Carbs
5.6g
· 2% DV
Protein
0.7g
· 1% DV
Fat
0.1g
· 0% DV
Fiber
1g
· 4% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 86% · Protein 11% · Fat 3%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 24 kcal | |
| Total fat | 0.1 g | 0% |
| Saturated fat | 0.01 g | 0% |
| Trans fat | 0 g | |
| Sodium | 2.4 mg | 0% |
| Total carbohydrate | 5.6 g | 2% |
| Fiber | 1 g | 4% |
| Protein | 0.7 g | 1% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
Log this food in EatBetter
100,000+ people use it
📸 Scan the code to get the app free.

| Serving | Amount | Calories |
|---|---|---|
| ½ cup (medium) | 60 g | 24 kcal |
| 1 g | 1 g | 0 kcal |
| 1 tablespoon (chopped) | 10 g | 4 kcal |
| 2 tablespoon (chopped) | 20 g | 8 kcal |
| 0.25 cup (small) | 30 g | 12 kcal |
| 1 serving (medium) | 50 g | 20 kcal |
| 1 piece (medium) | 80 g | 32 kcal |
| 100 g | 100 g | 40 kcal |
| 1 cup (large) | 120 g | 48 kcal |
| 1 piece (large) | 120 g | 48 kcal |
Calculated from 40 calories per 100 g.
To reduce tears while chopping an onion, chill it first and use a sharp knife to make clean cuts. Cutting near a running extractor fan or open window can also carry away the irritating compounds before they reach your eyes.
Chopped onion usually keeps for 3–5 days in the refrigerator when stored in a clean, airtight container. Keep it away from raw meat and fish, and discard it if it develops mold, a slimy texture, or an off smell.
Yes, chopped onion freezes well for cooked dishes. Spread the pieces on a tray to freeze separately, then transfer them to an airtight freezer bag. Frozen onion softens after thawing, so use it in soups, sauces, or sautés rather than raw salads.
No, you generally do not need to wash chopped onion. Peel the whole onion and chop it with a clean knife on a clean board; rinse the outside of the unpeeled onion first if it has visible dirt.
Yes, chopped onion can be eaten raw in salads, salsas, and sandwiches. If its sharp flavor is too strong, soak it briefly in cold water and drain it; cooking makes the flavor milder and sweeter.
Add chopped onion to the pan after the oil is warm, then cook it over medium heat until softened. For soups, sauces, and many skillet dishes, cooking the onion before the other ingredients builds a more rounded flavor.
Chopped onion can turn pink or bluish when its natural pigments react with acidic ingredients or particular storage conditions. A color change alone does not necessarily mean it is spoiled, but discard it if it is slimy, moldy, or smells unpleasant.
Store chopped onion in a clean, tightly sealed container to keep its odor from spreading through the refrigerator. A glass container with a secure lid works well; keep it chilled rather than leaving it on the counter.
Yes, you can add frozen chopped onion straight to a hot pan or simmering dish. It releases extra moisture as it thaws, so let that liquid cook off before expecting the onion to brown.
Yes, chopped onion is toxic to dogs whether it is raw, cooked, or dried. Onion can damage a dog's red blood cells, so contact a veterinarian promptly if your dog eats it rather than waiting for symptoms.
Vitamins
Vitamin C
4.44mg · 5% DV
B6
0.07mg · 4% DV
Folate
11.4µg · 3% DV
B1
0.03mg · 3% DV
Minerals
Manganese
0.08mg · 3% DV
Potassium ⭐
88mg · 3% DV
Copper
0.02mg · 2% DV
Phosphorus
17mg · 2% DV
Sodium
2.4mg · 0% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 24 calories in ½ cup (medium) (60 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
Chopped onion is fresh onion cut into small pieces, ready to add to a dish or serve raw. It is a kitchen staple across many cuisines: cooks use it as a base for soups, sauces, stews and stir-fries, while raw onion adds bite to salads, sandwiches and relishes.
Its flavour is sharp and juicy when raw, then mellows and turns gently sweet as it cooks. You can scatter it over tacos or grain bowls, fold it into an omelette, or soften it with other aromatics at the start of a recipe. At 40 calories per 100 g, it brings plenty of savoury flavour for relatively little energy. For a lighter dish, use it raw or soften it in a non-stick pan with just a little oil.
High
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Medium
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
NOVA 2
Minimally Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
No known major allergens
Vegan
✓ Suitable
Vegetarian
✓ Suitable
Gluten-Free
✓ Suitable
Dairy-Free
— Not suitable
Mediterranean
✓ Suitable
Paleo
✓ Suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
SATURATED
0.01g
MONOUNSATURATED
0.01g
POLYUNSATURATED
0.02g
Ask the AI nutrition coach — calories, portions, alternatives and more, answered in seconds in the app.
Nutrition data compiled from USDA FoodData Central and scientific sources.