Antarctic krill
Antarctic krill (Euphausia superba) are small, shrimp-like marine crustaceans that serve as a vital food source for many Antarctic animals.
Also known as: Euphausia superba
How big is it?
6 cm long
Also 2.362 in
Defined adult body length · representative specimen
Typical recorded range: 5 cm to 6.5 cm.

A little perspective
About the same scale as Lacrosse ball.
Lacrosse ball: A lacrosse ball is a solid rubber ball used in the sport of lacrosse, designed to meet official standards for play.
Measurements, assumptions & sources +
Antarctic krill
A defined adult Antarctic krill (Euphausia superba) 6 cm long with a 1.5 g wet mass. Body length excludes the antennae; sex, maturity and feeding condition affect size.
Australian Antarctic Program — Antarctic krill
The marked defined adult body length is calibrated. Unmeasured illustration details are representative.
Lacrosse ball
A defined regulation-range lacrosse ball 63.5 mm in diameter and 145 g. The selected values lie within World Lacrosse equipment limits.
World Lacrosse — Equipment and ball standards
The marked defined regulation-range diameter is calibrated. Unmeasured illustration details are representative.
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Why this measurement?
Why we use 6 cm
For comparison, this page uses defined adult body length. This is labelled representative specimen; the central value is useful for comparison, while real values or measurement solutions can vary. The recorded range is 5 cm to 6.5 cm.
A defined adult Antarctic krill (Euphausia superba) 6 cm long with a 1.5 g wet mass. Body length excludes the antennae; sex, maturity and feeding condition affect size.
The marked horizontal span follows the named feature; transparent margins and unmeasured details do not alter it. How calibrated comparisons work →
Recorded properties
Antarctic krill dimensions and measurements
| Property | Selected value | Recorded range | Basis |
|---|---|---|---|
| 6 cm | 5 cm to 6.5 cm | representative specimen | |
| 1.5 g | 1 g to 2 g | representative specimen |
Around this scale
Go smaller. Go bigger.
These links use compatible length records, ordered around the selected value.
Nearest lower value · Living thingsCleaner shrimp5.5 cmA cleaner shrimp is a marine crustacean that removes parasites and dead tissue from fish, forming mutualistic relationships.
Around the same scale · ContainersEspresso demitasse6 cmAn espresso demitasse is a small porcelain cup used for serving concentrated espresso coffee.
Nearest higher value · SportLacrosse ball6.35 cmA lacrosse ball is a solid rubber ball used in the sport of lacrosse, designed to meet official standards for play.Sources and method
Want to check the number?
The source records and measurement method remain available for inspection.
- Australian Antarctic Program — Antarctic krillAntarctic krill anatomy and adult length scale; the atlas selects an explicit adult specimen.
There’s always another scale




