How many barn in 1 square metre?
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 metre
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.
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A barn is a unit of area, abbreviated mostly as "bn", equal to 10^{-28} m^{2}. 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.

››Definition: Square meter

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 m².

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