›› Measurement unit: barn

Full name: barn

Plural form: barns

Symbol: bn

Category type: area

Scale factor: 1.0E-28


›› SI unit: square meter

The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn.


›› Convert barn to another unit

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›› Definition: Barn

A barn is a unit of area, abbreviated mostly as "bn", equal to 10-28 m2. Although not an official SI unit, it is widely used by nuclear physicists, since it is convenient for expressing the cross sectional area of nuclei and nuclear reactions. A barn is approximately equal to the area of a uranium nucleus.


›› Sample conversions: barn

barn to carreau
barn to tunnland
barn to caballeria [Spain/Peru]
barn to sitio
barn to square picometre
barn to section
barn to tsubo
barn to homestead
barn to legua
barn to square attometre