Food & Drink
How wide is an onion?
A typical onion is about 8 cm (3.15 in) wide.
What is measured: typical mature bulb, width
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How big is that, really?
- As wide as about 3 large coins side by side
- About the length of a credit card
- About 54% of the height of a smartphone
- About 21% of the height of a bowling pin
- About 11× the length of a grain of rice
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Facts about Onion
An onion bulb consists of enlarged, tightly packed leaf bases rather than a single solid root.
Source: Encyclopaedia Britannica, “Onion”; USDA FoodData Central, “Onions, raw”
Food & Drink
Compared with other foods and drinks
| Name | Size | Compared with Onion |
|---|---|---|
| Lemon | 7 cm (2.76 in) | 0.88× |
| Tomato | 7 cm (2.76 in) | 0.88× |
| Kiwi fruit | 7 cm (2.76 in) | 0.88× |
| Peach | 7 cm (2.76 in) | 0.88× |
| Orange | 8 cm (3.15 in) | same size |
| Potato | 8 cm (3.15 in) | same size |
| Beetroot | 8 cm (3.15 in) | same size |
| Onion | 8 cm (3.15 in) | this page |
| Hamburger | 10 cm (3.94 in) | 1.3× |
| Avocado | 10 cm (3.94 in) | 1.3× |
Test your sense of scale
Which is bigger: Onion or Hamburger?
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