Earthworm
An earthworm is a segmented invertebrate that lives in soil and aids in decomposing organic material.
How big is it?
12 cm long
Also 4.724 in
Body length · representative
A little perspective
Earthworm vs Human heart: length comparison
The body length of an earthworm is approximately equal to the long axis of a human heart.
An earthworm is a segmented invertebrate that lives in soil and aids in decomposing organic material.
A human heart is a muscular organ that pumps blood through the circulatory system.
Both rulers start at the same zero and share one linear scale. Artwork keeps its original proportions. Horizontal rulers compare the selected spans; vertical brackets also identify height on the artwork.
Measurements, assumptions & sources +
Earthworm
Body length: 12 cm; representative.
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
Representative long axis: 12 cm; defined specimen; range 10 cm–14 cm.
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.
Use the visual comparison to explore its scale, then check the measurements and sources.
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Why this measurement?
Why we use 12 cm
We compare the body length of an earthworm. This is a representative comparison value; individual specimens or conditions can vary.
A chosen 12 cm earthworm; length changes as the animal moves.
The marked horizontal span follows the measured feature, not the edges of the image. How calibrated comparisons work →
Recorded properties
Dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 12 cm | Not recorded | representative |
Around this scale
Explore nearby values.
Compare examples with lower, similar and higher values. Each card names the measurement being compared.
Nearest lower valueLiving thingsNudibranch10 cmDefined body lengthA nudibranch is a soft-bodied marine mollusc, often brightly coloured, commonly known as a sea slug.
Around the same scalePeople and human anatomyHuman heart12 cmRepresentative long axisA human heart is a muscular organ that pumps blood through the circulatory system.
Nearest higher valueLiving thingsFeather star15 cmDefined arm-tip spanA feather star is a marine crinoid with multiple feathery arms used for filter feeding and movement on the sea floor.Sources and method
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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.