Calories in Onion

Serving-size estimates for calories and macros (carbs, protein, fat). Vegetarian

Typical serving

Serving Size: 100 g

Calories

Carbs

9.3 g

Protein

0.9 g

Fat

0.1 g

Track in the app

Serving sizes

Use these as practical estimates. Recipes and oils can change totals.

Serving	Calories	Carbs (g)	Protein (g)	Fat (g)
50 g	20	4.7	0.5	0.1
100 g	40	9.3	0.9	0.1
150 g	60	14.0	1.4	0.2
200 g	80	18.6	1.8	0.2

More servings from database

Serving	Calories	Carbs (g)	Protein (g)	Fat (g)
Serving Size: 1 medium onion (150 g)	60	14.0	1.4	0.2
Serving Size: 100 g	40	9.3	0.9	0.1

Notes

Calories in Onion can vary depending on portion size and recipe. Added oil, ghee, butter, sugar, and frying typically increase calories and fat. Use the serving table above as a practical estimate, and adjust based on how your Onion is prepared.

If you can’t find an exact match in the app, Food Calories can suggest similar foods or provide an AI estimate—so you can keep logging without breaking your streak.

FAQ

How many calories are in Onion?

A typical serving (Serving Size: 100 g) has about 40 calories. Calories vary by portion size and cooking method.

What are the macros in Onion?

For Serving Size: 100 g: carbs 9.3 g, protein 0.9 g, fat 0.1 g (approx.).

Can I track Onion in the Food Calories app?

Yes. Food Calories supports Indian foods and lets you track calories and macros quickly—even offline. If you can’t find an exact match, try AI Help/Estimate.