Convert Onion from Grams to Cups (chopped)
Use the tool below to convert onion from Grams to Cups (chopped).
How many cups is 200g of onion?
200 g of onion is about 1.2 cups when chopped. The density is fixed, so 100 g is about 0.6 cups and 400 g about 2.4 cups. This holds at any size, since it measures chopped flesh by volume. Use the converter above for any gram 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 50 grams of shallots is in cups.
Spring onions (10–25 g) are tender and herbaceous, great raw or as a garnish. See what 50 grams of spring onions is in cups.
Mincing garlic for the same dish? Garlic cloves (2–7 g) bring pungent bite where onion brings sweet body. See what 50 grams of cloves is in cups.
Want a crisp, peppery bite? Radishes (8–25 g) are sharp and crunchy, good raw in slaws or quick pickles. See what 50 grams of radishes is in cups.
Out of onion? See onion substitutes →
No scale? The tool below gives a good estimate, but for exact bakes a digital kitchen scale removes the guesswork.
Weigh it exact, get a scaleOnion converter tool
Enter an amount, pick your units, and set the size for counting whole onions.
Result
0.01 cupsOnion 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.
| Grams | Cups (chopped) |
|---|---|
| 50 g | 0.3 cups |
| 100 g | 0.6 cups |
| 250 g | 1.5 cups |
| 500 g | 2.99 cups |
| 750 g | 4.49 cups |
| 1000 g | 5.99 cups |
For the reverse conversion, see what a cup of onions is in grams.
Frequently Asked Questions
- How many cups is 200 grams of onions?
- 200 grams of onions is about 1.2 cups of onion. The density of chopped onion is fixed, so the ratio holds at any amount: double the grams and you double the cups. Use the converter above for any quantity, or the chart above for the most common amounts. Open the onion converter
- How many cups is 400 grams of onions?
- 400 grams of onions is about 2.4 cups. The ratio is fixed, so 200 grams of onions is 1.2 cups 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 grams of onions is 1.2 cups?
- 1.2 cups of onions is about 200.4 grams. The conversion works the same in reverse, so you can switch between grams and cups 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