## Convert square millimetre to barn

 square millimeter barn

How many square millimeter in 1 barn? The answer is 1.0E-22. We assume you are converting between square millimetre and barn. You can view more details on each measurement unit: square millimeter or barn The SI derived unit for area is the square meter. 1 square meter is equal to 1000000 square millimeter, or 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 millimeters and barns. Type in your own numbers in the form to convert the units!

## Quick conversion chart of square millimeter to barn

1 square millimeter to barn = 1.0E+22 barn

2 square millimeter to barn = 2.0E+22 barn

3 square millimeter to barn = 3.0E+22 barn

4 square millimeter to barn = 4.0E+22 barn

5 square millimeter to barn = 5.0E+22 barn

6 square millimeter to barn = 6.0E+22 barn

7 square millimeter to barn = 7.0E+22 barn

8 square millimeter to barn = 8.0E+22 barn

9 square millimeter to barn = 9.0E+22 barn

10 square millimeter to barn = 1.0E+23 barn

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

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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.

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ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!