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How Many Onions Are in a Cup?

About 1 large onion makes 1 cup chopped. A medium onion gives roughly 3/4 to 1 cup.

Onions quick reference

1 cup choppedβ‰ˆ 1 large onion
1 medium onionβ‰ˆ 3/4–1 cup chopped
1 small onionβ‰ˆ 1/2 cup chopped

Frequently asked questions

How much is one medium onion chopped?
About 3/4 to 1 cup, or roughly 110–150 g.
How many onions in a pound?
About 2–3 medium onions.

More β€œhow many” guides

Measuring by weight instead? Browse BakingUnits ingredient conversions β†’