How much does a medium onion weigh in pounds?

A medium onion weighs about 0.24 lb (3.88 oz, 110 g). A small one is about 0.15 lb and a large one about 0.33 lb, so the pound total shifts with size. Set the size selector to match the onions you actually have before trusting a per-pound count, since the same weight in pounds maps to a different number of whole onions at each size.

How much do four onions weigh in pounds?

Four medium onions weigh about 0.97 lb, since a medium onion is roughly 0.24 lb (110 g). Small onions weigh less and large ones more, so the pound total shifts with size. Enter any count above to read the exact weight in pounds, ounces or grams for the onions you actually have.

Convert Onion from Whole Onions to Pounds

Onion converter

Use the tool below to convert onion from Whole Onions to Pounds.

Onion size swings from a 70 g small to a 150 g large, more than double. Setting the size below means “1 cup chopped” comes out right whether your onions are small or jumbo.

How much does an onion weigh in pounds?

A medium onion weighs about 0.24 lb (110 g), so four medium onions come to roughly 0.97 lb. A small onion is about 0.15 lb and a large one about 0.33 lb. Set the size selector to match what you have for an exact weight.

Out of onion? See onion substitutes →

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 our Shallot converter.

Spring onions (10–25 g) are tender and herbaceous, great raw or as a garnish. See our Spring Onion converter.

Mincing garlic for the same dish? Garlic cloves (2–7 g) bring pungent bite where onion brings sweet body. See our Garlic converter.

Enter an amount, pick your units, and set the size for counting whole onions.

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Onion sizeSize applies to whole onions (small / medium / large).

Result

0.24 lb

Common Onion conversions

Quick reference for onion at medium size. Switch the size in the converter above for small or large.

onions	Pounds
1 onion	0.24 lb
2 onions	0.49 lb
3 onions	0.73 lb
4 onions	0.97 lb
5 onions	1.21 lb
6 onions	1.46 lb

Onion conversion chart

The chart below shows how whole onions (medium size) convert to cups, grams and ounces.

onions	lb	cups	cups (US)	g	oz
1 onion	0.24 lb	0.66 cups	0.69 cups (US)	110 g	3.88 oz
2 onions	0.49 lb	1.32 cups	1.38 cups (US)	220 g	7.76 oz
3 onions	0.73 lb	1.98 cups	2.06 cups (US)	330 g	11.64 oz
4 onions	0.97 lb	2.63 cups	2.75 cups (US)	440 g	15.52 oz
5 onions	1.21 lb	3.29 cups	3.44 cups (US)	550 g	19.4 oz

Onion varieties and best uses

The conversions above are the same whatever variety you use; the difference is what each is good for. Here is how the common onion varieties compare.

Variety	Best for
Yellow / brown	All-purpose cooking, soups, caramelising: balanced and sweetens when cooked.
Red	Raw in salads and pickling: mild, colourful; also good roasted.
White	Mexican dishes and salsa: sharp and clean raw.
Sweet (Vidalia / Walla Walla)	Onion rings and raw slices: low pungency, high sugar.
Shallot	Dressings and pan sauces: delicate, subtle flavour.

Which should I pick?

For everyday cooking, soups, and caramelising, a yellow / brown onion is the default, with the most balanced flavour. For raw use in salads, salsa, or pickling, a red or sweet (Vidalia / Walla Walla) onion is milder. White onions suit Mexican dishes; shallots are the delicate choice for dressings and pan sauces.

Frequently Asked Questions

How much does a medium onion weigh in pounds?: A medium onion weighs about 0.24 lb (3.88 oz, 110 g). A small one is about 0.15 lb and a large one about 0.33 lb, so the pound total shifts with size. Set the size selector to match the onions you actually have before trusting a per-pound count, since the same weight in pounds maps to a different number of whole onions at each size. Open onion converter
Which onion variety should I use?: For everyday cooking, soups, and caramelising, a yellow / brown onion is the default, with the most balanced flavour. For raw use in salads, salsa, or pickling, a red or sweet (Vidalia / Walla Walla) onion is milder. White onions suit Mexican dishes; shallots are the delicate choice for dressings and pan sauces.
How much do four onions weigh in pounds?: Four medium onions weigh about 0.97 lb, since a medium onion is roughly 0.24 lb (110 g). Small onions weigh less and large ones more, so the pound total shifts with size. Enter any count above to read the exact weight in pounds, ounces or grams for the onions you actually have.

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