Calorie Chart

How Many Calories in Onion?

100 g of Onion provides about 40 kcal; 1 medium is about 44 kcal.

Calories and nutrition by amount

AmountkcalProteinCarbsFat
100 g401.1 g9.3 g0.1 g
1 medium (110 g)441.2 g10.2 g0.1 g

Portion weights are typical values; actual weight varies with size.

Where the energy comes from

  • Protein: 10%
  • Carbs: 88%
  • Fat: 2%
  • Fiber: 1.7 g / 100 g

To burn it off

1 medium takes about 10 minutes of brisk walking.

A rough estimate for a 70 kg adult walking at 5 km/h.

Similar foods

Frequently asked

How many calories in 100 g of Onion?

100 g of Onion has about 40 kcal.

How many calories in 1 medium of Onion?

1 medium weighs about 110 g and has about 44 kcal.

How much protein is in Onion?

100 g of Onion has about 1.1 g protein, 9.3 g carbs and 0.1 g fat.

Values are averages and vary by recipe, brand and cooking method. Not medical nutrition advice.