How many barn in 1 square millimeter?
The answer is 1.0E+22.
We assume you are converting between barn and square millimetre.
You can view more details on each measurement unit:
barn or square millimeter
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn, or 1000000 square millimeter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between barns and square millimeters.
Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from square millimeter to barn, or enter any two units below:
barn to square perch
barn to square zeptometer
barn to arpent
barn to square gigameter
barn to centiare
barn to square kilometer
barn to square terameter
barn to square megameter
barn to jerib
barn to square tenthmeter
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.
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