How Much Does a Cooked Onion Weigh?

A cooked onion weighs about 148 grams (5.2 oz).

That is the USDA average for one cooked onion, which has 70 calories and 1.9 g of protein. Sizes vary, so weigh yours if you track closely.

Cooked Onions Calorie Calculator

AmountUnit

70cal

in 1 cooked onion (148 g)

Protein1.9 g10% of calories

Fat0.2 g2% of calories

Carbs16 g88% of calories

3% of a 2,000 calorie day

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Cooked Onions weight by size and measure

Measure	Grams	Ounces	Calories
1 cooked onion	148 g	5.2 oz	70
1 slice of cooked onions	15 g	0.5 oz	7
1 cup of cooked onions	210 g	7.4 oz	99

Cooked Onions calories by serving size

Common amounts of cooked onions with calories and macros. Tap a row for its full nutrition page.

Serving	Weight	Calories	Protein	Fat	Carbs
1 slice	15 g	7	0.2 g	0 g	1.6 g
2 slices	30 g	14	0.4 g	0 g	3.3 g
50g	50 g	24	0.6 g	0.1 g	5.5 g
100g	100 g	47	1.3 g	0.1 g	11 g
1/2 cup	105 g	49	1.4 g	0.1 g	12 g
4 oz	113 g	53	1.5 g	0.1 g	12 g
1 cooked onion	148 g	70	1.9 g	0.2 g	16 g
200g	200 g	94	2.6 g	0.2 g	22 g
1 cup	210 g	99	2.7 g	0.3 g	23 g
2 cooked onions	296 g	139	3.8 g	0.4 g	32 g

Cooked Onions vs similar foods

Calories per 100 g compared with other vegetables.

Canned Peas and Onions51

Cooked Pearl Onions50

Cooked Onions47

Cooked Onions: common questions