Convert Onion from Pounds to Whole items
Onion converter
Use the tool below to convert onion from Pounds to Whole items.
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.
Enter an amount, pick your units, and set the item size for whole-item counts.
Result
4.12 onionsCommon Onion conversions
Quick reference for onion at medium size. Switch the size in the converter above for small or large.
| Pounds | Whole items |
|---|---|
| 0.5 lb | 2.06 onions |
| 1 lb | 4.12 onions |
| 1.5 lb | 6.19 onions |
| 2 lb | 8.25 onions |
| 3 lb | 12.37 onions |
Onion conversion chart
The chart below shows how whole onions (medium size) convert to cups, grams and ounces.
| lb | onions | cups | cups (US) | g | oz |
|---|---|---|---|---|---|
| 0.5 lb | 2.06 onions | 1.36 cups | 1.42 cups (US) | 226.8 g | 8 oz |
| 1 lb | 4.12 onions | 2.72 cups | 2.83 cups (US) | 453.59 g | 16 oz |
| 2 lb | 8.25 onions | 5.43 cups | 5.67 cups (US) | 907.18 g | 32 oz |
| 3 lb | 12.37 onions | 8.15 cups | 8.5 cups (US) | 1360.78 g | 48 oz |
| 5 lb | 20.62 onions | 13.58 cups | 14.17 cups (US) | 2267.96 g | 80 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 many cups is one medium onion?
- One medium onion (about 110 g) gives roughly 0.66 cups of chopped flesh. A small one (around 70 g) yields about 0.42 cups and a large one (around 150 g) about 0.9 cups, so set the size selector to match the onions you actually have before you trust the figure. Open onion converter
- How many onions make one cup chopped?
- You need about 1.52 medium onions for one cup of chopped onion. With small onions that rises to roughly 2.39, and with large onions it drops to about 1.11. The converter runs both ways, so enter the cups your recipe asks for and read off how many whole onions to chop.
- How much does a medium onion weigh?
- A medium onion weighs about 110 g, small is around 70 g and large around 150 g.
- 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.
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