Food & Drink

How wide is a mustard seed?

A typical mustard seed is about 2 mm wide.

What is measured: Typical whole seed, width

Mustard seed (2 mm) drawn to scale beside a raindrop (2 mm) and a grain of rice (7 mm)
Drawn to scale, from left to right: Mustard seed (2 mm), Raindrop (2 mm) and Grain of rice (7 mm).

Compare

How big is that, really?

  • About the same width as a raindrop
  • As wide as about 4 grains of sand side by side
  • About 3 would fit end to end along a grain of rice
  • As wide as about 17 human egg cells side by side
  • About 29× as wide as a human hair

Learn

Facts about Mustard seed

Mustard seeds vary in color from yellow and white to brown and black, depending on the species.

Source: Encyclopaedia Britannica, Mustard plant; McCormick Science Institute, Mustard

Food & Drink

NameSizeCompared with Mustard seed
Poppy seed1 mm0.5×
Sesame seed2 mmsame size
Mustard seed2 mmthis page
Lentil4 mm (0.16 in)2×
Rice grain7 mm (0.28 in)3.5×
Pea8 mm (0.31 in)4×
Chickpea8 mm (0.31 in)4×
Coffee bean9 mm (0.35 in)4.5×
Corn kernel1.2 cm (0.47 in)6×
Blueberry1.5 cm (0.59 in)7.5×

Test your sense of scale

Which is bigger: Mustard seed or Poppy seed?

Topics

More sizes like this