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How many grams is two cups of diced onion?

2 cups of diced onion ≈ 284 g

Because one US cup of diced onion weighs about 142 grams, two cups of it is roughly 284 grams. One medium yellow onion yields close to one cup diced — about 142 grams.

Recipes that list diced onion in cups assume an average density. The figure above is a sensible typical value; if your recipe is sensitive, weigh on a kitchen scale — see our methodology.

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Diced onion conversion chart

Diced onion — cups to grams
Cups	Grams	Ounces	Tablespoons
⅛ cup	17.75 g	0.626 oz	2
¼ cup	35.5 g	1.25 oz	4
⅓ cup	47.33 g	1.67 oz	5.33
½ cup	71 g	2.5 oz	8
⅔ cup	94.67 g	3.34 oz	10.67
¾ cup	106.5 g	3.76 oz	12
1 cup	142 g	5.01 oz	16
1¼ cups	177.5 g	6.26 oz	20
1½ cups	213 g	7.51 oz	24
2 cups	284 g	10.02 oz	32
3 cups	426 g	15.03 oz	48

Other diced onion conversions

100 g to cups 200 g to cups 250 g to cups 500 g to cups ¼ cup to grams ½ cup to grams 1 cup to grams

← Onion, diced converter All ingredients Cups to grams chart

* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.