Onion (Chopped)

'One medium onion' is cooking's vaguest measurement: it can range from 100g to 300g. For a soup, it might not matter, but in sauces, meatballs, or fillings, excess onion releases water that can ruin the texture. Weighing chopped onion gives you total control over flavor and moisture.

What is Onion (Chopped)?

'One medium onion' is cooking's vaguest measurement: it can range from 100g to 300g. For a soup, it might not matter, but in sauces, meatballs, or fillings, excess onion releases water that can ruin the texture. Weighing chopped onion gives you total control over flavor and moisture.

Quick convert

  • US cup = 236.588 mL
  • 1 tbsp = 14.787 mL
  • 1 tsp = 4.929 mL
Density source:USDA SR Legacy

Onion (Chopped) — Cup → g

Cupsg
1/8 cup20
1/4 cup40
1/3 cup53
1/2 cup80
2/3 cup107
3/4 cup120
1 cup160
1 1/2 cups240
2 cups320

Onion (Chopped) — g → Cups

gCups
500.3
1000.6
1500.9
2001.3
2501.6
3001.9
3502.2
4002.5
4502.8
5003.1
6003.8
7004.4
8005.0
9005.6
10006.3

Onion (Chopped) — Tbsp → g

Tbspg
110
220
330
440
550
660
770
880
990
10100
11110
12120
13130
14140
15150
20200
25250
30300

Onion (Chopped) — mL → g

mLg
107
2517
5034
7551
10068
12585
150101
200135
250169
500338
750507
1000676

Onion (Chopped) — Tsp → g

Tspg
13
27
310
413
517
620
723
827
930
1033
1137
1240
1343
1447
1550
2067
2583
30100

Onion (Chopped) — oz → g

ozg
128
257
385
4113
5142
8227
10283
12340
15425
20567
25709
30850
401134
501417

Cups-to-Grams Printable Chart

100+ ingredients with exact gram weights per cup, tbsp and tsp. The reference card every cook needs.

FAQ

Small, Medium, Large Onion: What are the weights?
Roughly: Small = 110g, Medium = 150-170g, Large = 250g+. But nature varies. If a recipe calls for '1 cup chopped onion', aim for about 150g.

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