How many barn in 1 square meter?
The answer is 1.0E+28.
We assume you are converting between barn and square metre.
You can view more details on each measurement unit:
barn or
square meter
The SI derived unit for area is the square meter.
1 barn is equal to 1.0E-28 square meter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between barns and square meters.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from square meter to barn, or enter any two units below:
barn to square micromicron
barn to township
barn to square fathom
barn to dunam
barn to square yottameter
barn to perch
barn to tsubo
barn to square perche
barn to nook
barn to square chain
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.
A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. It is the SI unit of area. It is abbreviated mē.
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