EN

How many cups is 1 ounce of onion?

1 oz = 0.18 cup

One level US cup of onion weighs 160 g (5.6 oz). A tablespoon is 10 g. Per 100 g: 40 calories and 1.1 g protein.

Your amount

0.18 cup1 ounce
11.3Calories
0.31 gProtein

Conversion chart

Onion: ounces to cups
ouncescupsCaloriesProtein
1 oz0.18 cup110.3 g
2 oz0.35 cup230.6 g
4 oz0.71 cup451.2 g
8 oz1.4 cup912.5 g
16 oz2.8 cup1815 g

How to measure

Fill the cup to the top and level it with a spatula.

One medium onion gives about 1 cup chopped.

Common questions

How many cups is 1 ounce of onion?

1 ounce of onion = 0.18 cup. One medium onion gives about 1 cup chopped.

Is this a level or heaped ounce?

Level. Heaped spoons and packed cups can weigh 20 to 30% more.

Why does my package say something different?

Brands grind and pack differently. For baking, a kitchen scale is always more accurate than cups.