How many square meters in 1 barn?
The answer is 1.0E-28.
We assume you are converting between square metre and barn.
You can view more details on each measurement unit: square meters or
barn
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square meters and barns.
Type in your own numbers in the form to convert the units!

››Quick conversion chart of square meters to barn

1 square meters to barn = 1.0E+28 barn

2 square meters to barn = 2.0E+28 barn

3 square meters to barn = 3.0E+28 barn

4 square meters to barn = 4.0E+28 barn

5 square meters to barn = 5.0E+28 barn

6 square meters to barn = 6.0E+28 barn

7 square meters to barn = 7.0E+28 barn

8 square meters to barn = 8.0E+28 barn

9 square meters to barn = 9.0E+28 barn

10 square meters to barn = 1.0E+29 barn

››Want other units?

You can do the reverse unit conversion from
barn to square meters, or enter any two units below:

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.

››Definition: Barn

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.

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