## ››Convert barn to circular mil

 barn circular mil

How many barn in 1 circular mil? The answer is 5.067074790975E+18.
We assume you are converting between barn and circular mil.
You can view more details on each measurement unit:
barn or circular mil
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn, or 1973525241.39 circular mil.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between barns and circular mils.
Type in your own numbers in the form to convert the units!

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You can do the reverse unit conversion from circular mil to barn, 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.

## ››Definition: Circular mil

A circular mil is a unit of area, equal to the area of a circle with a diameter of one mil (one thousandth of an inch). It is a convenient unit for referring to the area of a wire with a circular cross section, because the area in circular mils can be calculated without reference to pi (π).

## ››Metric conversions and more

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, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!