Copepod
A copepod is a tiny aquatic crustacean found in marine and freshwater environments, playing a key role in aquatic food webs.
Also known as: calanoid copepod
How big is it?
2 mm long
Also 0.07874 in
Defined body length · defined specimen
Typical recorded range: 1.5 mm to 2.5 mm.
A little perspective
About the same scale as Chia seed.
Chia seed: A chia seed is the edible seed of the Salvia hispanica plant, often used in foods such as puddings and cereals.
Measurements, assumptions & sources +
Copepod
A defined 2 mm adult calanoid copepod specimen with a 10 microgram wet mass. The body span excludes the long antennules; species, life stage and hydration produce wide variation.
Defined examples — our methodology
The marked defined body length is calibrated. Unmeasured illustration details are representative.
Chia seed
A defined dry chia seed 2 mm long and 1.3 mg in mass. Cultivar, moisture and individual seed shape cause variation.
Defined examples — our methodology
The marked defined seed length is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 2 mm
For comparison, this page uses defined body length. This is labelled defined specimen: an explicit comparison model rather than a claim that every example has the same value. The recorded range is 1.5 mm to 2.5 mm.
A defined 2 mm adult calanoid copepod specimen with a 10 microgram wet mass. The body span excludes the long antennules; species, life stage and hydration produce wide variation.
The marked vertical span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Copepod dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 2 mm | 1.5 mm to 2.5 mm | defined specimen | |
| 10 µg | 3 µg to 30 µg | defined specimen |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Living thingsPoppy seed1 mmA poppy seed is an edible seed produced by plants in the poppy family and commonly used in breads and other foods.
Around the same scale · Everyday thingsChia seed2 mmA chia seed is the edible seed of the Salvia hispanica plant, often used in foods such as puddings and cereals.
Nearest higher value · Living thingsSesame seed3 mmA sesame seed is an oil-rich edible seed produced by the sesame plant and used whole, ground or pressed for oil.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
There’s always another scale
Follow your curiosity.
Living thingsAntarctic krill6 cmAntarctic krill (Euphausia superba) are small, shrimp-like marine crustaceans that serve as a vital food source for many Antarctic animals.
Living thingsSea butterfly5 mmA sea butterfly is a small marine snail that swims using wing-like extensions and has a delicate coiled shell.Everyday thingsChia seed2 mmA chia seed is the edible seed of the Salvia hispanica plant, often used in foods such as puddings and cereals.
Everyday thingsQuinoa seed2 mmA quinoa seed is the edible seed of the Chenopodium quinoa plant, commonly used as a grain substitute in cooking.Living thingsSesame seed3 mmA sesame seed is an oil-rich edible seed produced by the sesame plant and used whole, ground or pressed for oil.Living thingsPoppy seed1 mmA poppy seed is an edible seed produced by plants in the poppy family and commonly used in breads and other foods.
MicroscopicGrain of sand500 µmA grain of sand is a tiny fragment of rock or mineral, commonly found on beaches and in soil.
Living thingsSmall ant5 mmAn ant is a social insect that lives in an organised colony, usually with workers, a queen and specialised roles.