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Food & Drink

How long is a sunflower seed?

A sunflower seed is about 1.5 cm (0.59 in) long.

What is measured: unshelled seed, length

Sunflower seed (1.5 cm) drawn to scale beside a grain of rice (7 mm) and a large coin (2.4 cm)
Drawn to scale, from left to right: Grain of rice (7 mm), Sunflower seed (1.5 cm) and Large coin (2.4 cm).

Compare

How big is that, really?

  • As long as about 2 grains of rice end to end
  • About 63% of the width of a large coin
  • About 5 would fit end to end along a credit card
  • About 7.5× the width of a raindrop
  • About 9 would fit end to end along a smartphone

Learn

Facts about Sunflower seed

The familiar sunflower seed is technically a fruit called an achene, with the edible seed inside.

Source: National Sunflower Association, “Sunflower 101”; Encyclopaedia Britannica, “Sunflower”

Food & Drink

NameSizeCompared with Sunflower seed
Pea8 mm (0.31 in)0.53×
Chickpea8 mm (0.31 in)0.53×
Coffee bean9 mm (0.35 in)0.6×
Corn kernel1.2 cm (0.47 in)0.8×
Blueberry1.5 cm (0.59 in)same size
Sunflower seed1.5 cm (0.59 in)this page
Grape2 cm (0.79 in)1.3×
Cherry2 cm (0.79 in)1.3×
Raspberry2 cm (0.79 in)1.3×
Peanut3 cm (1.18 in)2×

Test your sense of scale

Which is bigger: Sunflower seed or Corn kernel?

Topics

More sizes like this