Axis

Area

barnbarn

10⁻²⁸ m², used for nuclear cross-sections.

Dimension
area
Canonical signature
L^2
System
si accepted
Exactness
Exact

Definition record

How this unit is defined

Canonical base
1 barn = 1e-28 m²
Conversion type
linear
Aliases
b, barns

Same dimension

Related units

square metresim²hectaresi acceptedhaacreimperial usaclitre per 100 kilometressi acceptedL/100kmaresi acceptedaroodimperial usroodtsubojapanesetsubodarcyimperial usD

Common conversions

Every conversion routes through the canonical base of the dimension.

1 barn = 1e-28 m²

Exact relationship

10 barn = 1e-27 m²

Exact relationship