Convert Onion from Cups (chopped) to Grams
Use the tool below to convert onion from Cups (chopped) to Grams.
How many grams is 1 cup of onion?
One cup of chopped onion weighs about 167 g. Half a cup is about 83.5 g and two cups about 334 g. The weight is the same at any item size, since it measures chopped flesh, so use the converter above for any cup amount.
Related Onion Ingredients
Already chopping? The chopped onion converter moves straight between cups, grams, and spoons of prepped onion. See our Chopped Onion converter.
Need a milder, more delicate allium? Shallots (20–60 g) suit dressings and pan sauces. See what a cup of shallots is in grams.
Spring onions (10–25 g) are tender and herbaceous, great raw or as a garnish. See what a cup of spring onions is in grams.
Mincing garlic for the same dish? Garlic cloves (2–7 g) bring pungent bite where onion brings sweet body. See what a cup of cloves is in grams.
Want a crisp, peppery bite? Radishes (8–25 g) are sharp and crunchy, good raw in slaws or quick pickles. See what a cup of radishes is in grams.
Out of onion? See onion substitutes →
No measuring cups? The tool below gets you close, and a measuring cup set keeps every batch the same.
Scoop it right, get measuring cupsOnion converter tool
Enter an amount, pick your units, and set the size for counting whole onions.
Result
167 gOnion Calculators & Kitchen Tools
Working with onion? These tools handle the jobs a converter cannot.
- Oven to Air Fryer Converter Match the temperature and time when you swap the oven for an air fryer, fan oven, or slow cooker.
- Recipe Scaler Scale any recipe up or down and keep every ingredient in ratio.
Common Onion conversions
Quick reference for onion at medium size. Switch the size in the converter above for small or large.
| Cups (chopped) | Grams |
|---|---|
| 0.25 cups | 41.75 g |
| 0.5 cups | 83.5 g |
| 0.75 cups | 125.25 g |
| 1 cup | 167 g |
| 1.5 cups | 250.5 g |
| 2 cups | 334 g |
| 3 cups | 501 g |
For the reverse conversion, see what 200 grams of onions is in cups.
Frequently Asked Questions
- How many grams is a cup of onions?
- A cup of onions is about 167 grams of onion. The density of chopped onion is fixed, so the ratio holds at any amount: double the cups and you double the grams. Use the converter above for any quantity, or the chart above for the most common amounts. Open the onion converter
- How many grams is 2 cups of onions?
- 2 cups of onions is about 334 grams. The ratio is fixed, so a cup of onions is 167 grams and the figure scales in a straight line as you multiply or divide. Scaling a recipe up or down keeps the same proportion, so work from whichever amount your recipe lists. Use the converter above for any other quantity of onion.
- How many cups of onions is 167 grams?
- 167 grams of onions is about 1 cup. The conversion works the same in reverse, so you can switch between cups and grams without changing the result. This helps when a recipe lists one unit but you would rather measure the other. Use the converter above for any amount.
- What is the difference between a metric and US cup?
- A metric cup holds 250 ml while a US cup holds 240 ml, so a US cup is 4% smaller. For chopped onion that gap is small but real, and it adds up across several cups. The guide linked below explains when the difference matters and how to switch between the two so a recipe lands right whichever cup you own. metric v US cup