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

Onion (8 cm) drawn to scale beside a large coin (2.4 cm) and a smartphone (14.7 cm)
Drawn to scale, from left to right: Large coin (2.4 cm), Onion (8 cm) and Smartphone (14.7 cm).

Compare

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

Learn

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

NameSizeCompared with Onion
Lemon7 cm (2.76 in)0.88×
Tomato7 cm (2.76 in)0.88×
Kiwi fruit7 cm (2.76 in)0.88×
Peach7 cm (2.76 in)0.88×
Orange8 cm (3.15 in)same size
Potato8 cm (3.15 in)same size
Beetroot8 cm (3.15 in)same size
Onion8 cm (3.15 in)this page
Hamburger10 cm (3.94 in)1.3×
Avocado10 cm (3.94 in)1.3×

Test your sense of scale

Which is bigger: Onion or Hamburger?

Topics

More sizes like this