Small: A small

**onion**should weigh around 4 ounces, should fit pretty easily in your hand, and should yield about 1/2 cup once**chopped**. Medium: A medium**onion**is about twice as**big**as a small**one**, weighing it at roughly 8 ounces and yielding (you guessed it) about a cup once**chopped**.Similarly one may ask, how many cups does one onion make?

In our test, a medium onion yielded around

**2 cups**of diced onions, while a large onion yielded**3 cups**of the same sized dice.How many onions is 4 cups chopped?

Small onion = 4 ounces by weight or about

Medium onion = 8 ounces, or about 1 cup chopped.

Large onion =

Jumbo onion = 16 ounces, or about 2 cups chopped.

**½**cup chopped.Medium onion = 8 ounces, or about 1 cup chopped.

Large onion =

**12**ounces, or about 1½ cups chopped.Jumbo onion = 16 ounces, or about 2 cups chopped.

How much is a serving of onions?

1-Cup Serving. The National Onion Association defines a serving size for onions as 1 cup or 160 grams. A serving has

**64**calories, 15 grams of carbohydrates, 7 grams of naturally occurring sugar and around 5 grams of protein.