Earthworm
An earthworm is a segmented invertebrate that lives in soil and aids in decomposing organic material.
How big is it?
12 cm across
Also 4.724 in
Body length · representative
A little perspective
About the same scale as Human heart.
Human heart: A human heart is a muscular organ that pumps blood through the circulatory system.
Measurements, assumptions & sources +
Earthworm
A chosen 12 cm earthworm; length changes as the animal moves.
Defined examples — our methodology
The marked body length is calibrated. Unmeasured illustration details are representative.
Human heart
A fist-sized adult heart represented by a 12 cm long-axis specimen. Cleveland Clinic gives an average adult mass of about 10 oz (283 g); individual anatomy varies.
Defined examples — our methodology
The marked representative long axis is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 12 cm
For comparison, this page uses body length. This is labelled representative; the central value is useful for comparison, while real values or measurement solutions can vary.
A chosen 12 cm earthworm; length changes as the animal moves.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Earthworm dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 12 cm | Not recorded | representative |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Living thingsNudibranch10 cmA nudibranch is a soft-bodied marine mollusc, often brightly coloured, commonly known as a sea slug.
Around the same scale · PeopleHuman heart12 cmA human heart is a muscular organ that pumps blood through the circulatory system.
Nearest higher value · Living thingsFeather star15 cmA feather star is a marine crinoid with multiple feathery arms used for filter feeding and movement on the sea floor.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
More ways to see it
Curated comparisons
There’s always another scale
Follow your curiosity.
Living thingsHoneybee1.5 cmA honeybee is a social insect that lives in a colony and gathers nectar and pollen from flowers.
Living thingsSmall ant5 mmAn ant is a social insect that lives in an organised colony, usually with workers, a queen and specialised roles.
Everyday thingsUS quarter2.426 cmA US quarter is a coin worth twenty-five cents, commonly used in United States currency.PeopleHuman heart12 cmA human heart is a muscular organ that pumps blood through the circulatory system.
Everyday thingsPear11 cmA pear is a sweet, edible fruit produced by trees of the genus Pyrus, commonly eaten fresh or used in cooking and baking.Living thingsNudibranch10 cmA nudibranch is a soft-bodied marine mollusc, often brightly coloured, commonly known as a sea slug.
SpaceVanguard 116.5 cmVanguard 1 is an early American satellite launched in 1958, notable for being the oldest human-made object still in orbit.
SportShuttlecock8.5 cmA shuttlecock is a feathered projectile used in badminton, designed to be struck by rackets.