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Nature

How big is a Gippsland giant earthworm?

An adult Gippsland giant earthworm is about 2 cm (0.79 in) across.

What is measured: Adult body diameter

Gippsland giant earthworm (2 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), Gippsland giant earthworm (2 cm) and Large coin (2.4 cm).

Compare

How big is that, really?

  • A little smaller than a large coin
  • About 2.9× the length of a grain of rice
  • As wide as about 10 raindrops side by side
  • About 4 would fit end to end along a credit card
  • About 7 would fit end to end along a smartphone

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Facts about Gippsland giant earthworm

Gippsland giant earthworms can grow to several metres long, making them among the largest earthworms known.

Source: Australian Museum — Giant Gippsland Earthworm; Museum Victoria — Giant Gippsland Earthworm

Nature

NameSizeCompared with Gippsland giant earthworm
Common pill bug1.2 cm (0.47 in)0.6×
Gippsland giant earthworm2 cm (0.79 in)this page
Bargibant’s seahorse2.4 cm (0.94 in)1.2×
Blue dragon sea slug3 cm (1.18 in)1.5×
Garden snail3 cm (1.18 in)1.5×
Bee hummingbird5.5 cm (2.17 in)2.8×
Monarch butterfly9.5 cm (3.74 in)4.8×
Luna moth11.5 cm (4.53 in)5.8×
Venus flytrap15 cm (5.91 in)7.5×
Pygmy marmoset15 cm (5.91 in)7.5×

Test your sense of scale

Which is bigger: Gippsland giant earthworm or Bargibant’s seahorse?

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