Onion vs Apple: Which Has More Calories?
Per 100 g, Onion has 40 kcal and Apple has 52 kcal, so Onion has 23% fewer calories.
Apple has more carbohydrates (13.8 g vs 9.34 g). Relative to calories, Onion is the better protein source (2.75 g vs 0.5 g of protein per 100 kcal).


Nutrition Facts
Serving size:
change
5g10g15g20g30g40g50g60g80g100g120g140g160g180g200g220g250g300g350g400g450g500g600g700g800g900g1000g
1oz2oz3oz4oz5oz6oz7oz8oz10oz12oz15oz20oz25oz30oz35oz40oz50oz
Amount Per Serving:
Serving size:
change
5g10g15g20g30g40g50g60g80g100g120g140g160g180g200g220g250g300g350g400g450g500g600g700g800g900g1000g
1oz2oz3oz4oz5oz6oz7oz8oz10oz12oz15oz20oz25oz30oz35oz40oz50oz
Amount Per Serving:
Onion vs Apple 100g Compare
| per 100g | Onion | Apple |
|---|---|---|
| Calories | 40 | 52 |
| Carbohydrates | 9.34 g | 13.81 g |
| Fat | 0.1 g | 0.17 g |
| Dietary fiber | 1.7 g | 2.4 g |
| Protein | 1.1 g | 0.26 g |
| Water | 89.11 g | 85.56 g |
| Calcium | 23 mg | 6 mg |
| Iron | 0.21 mg | 0.12 mg |
| Magnessium | 10 mg | 5 mg |
| Potassium | 146 mg | 107 mg |
| Sodium | 4 mg | 1 mg |
| Vitaminium A | 2 IU | 54 IU |
| Vitaminium B1 (Thiamine) | 0.046 mg | 0.017 mg |
| Vitaminium B2 (riboflavin) | 0.027 mg | 0.026 mg |
| Vitaminium B3 (Niacin) | 0.116 mg | 0.091 mg |
| Vitaminium B5 | 0.123 mg | 0.061 mg |
| Vitaminium B6 | 0.12 mg | 0.041 mg |
| Vitaminium B9 (Folic acid) | 0.019 µg | 0.003 µg |
| Vitaminium C | 7.4 mg | 4.6 mg |
| Vitaminium E | 0.02 mg | 0.18 mg |
| Beta karoten | 1 µg | 27 µg |
Less Calories in Onion
At first glance, you can see that in onion is less calories than in apple.
Onion has 40 kcal per 100g and apple 52 kcal per 100g so it is pretty easy to calculate that the difference is about 30%.
In onion and in apple most calories came from carbs.
See tables below to compare onion with apple in details.
Onion 100g
40kcalCalories source
- 88% CARBS.
- 10% PROTEIN
- 2% FAT
Apple 100g
52kcalCalories source
- 96% CARBS
- 2% PROTEIN
- 3% FAT
Compares of onion
Compares of apple
Related foods:
Related compares:
About the data
Nutrition values on this page are given per 100 g of the food and are based on the official United States Department of Agriculture FoodData Central database. The exact record used for each food is linked under the tables.
Marcin Piotrowicz – calories-info.com creator · Healthy diet and healthy lifestyle promoter. The information is for general purposes and is not medical or dietary advice.