## ››Convert barn to are

 barn are

How many barn in 1 are? The answer is 1.0E+30.
We assume you are converting between barn and are.
You can view more details on each measurement unit:
barn or are
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn, or 0.01 are.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between barns and ares.
Type in your own numbers in the form to convert the units!

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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: Are

An are or (symbol a) is a unit of surface area, equivalent to 100 square metres. The are is most familiar through its derived unit, the hectare. Neither the are nor the hectare are SI units, although they are both accepted for use with SI units.

## ››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!