How many calories in half a cup of onions?

Calories in half a cup of onions

• 32 in half a cup of chopped raw onion
• 34 in half a cup of chopped raw onion
• 23 in half a cup of sliced raw onion
• 23 in half a cup sliced raw onion

For the calories in other vegetables, and fruits, and free fruit and vegetable calorie charts that you can use as daily guides for either weight loss or weight maintenance, see the page links, further down this page, listed under Sources and Related Links.