## ››Convert barn to hectare

 barn hectare

How many barn in 1 hectare? The answer is 1.0E+32.
We assume you are converting between barn and hectare.
You can view more details on each measurement unit:
barn or hectare
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn, or 0.0001 hectare.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between barns and hectares.
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: Hectare

A hectare (symbol ha) is a metric unit of surface area, equal to 100 ares (the name is a contraction of the SI prefix hecto + are). It is a non-SI unit currently accepted (although discouraged) for use with the SI. Its use is widespread in agriculture where it is more practical than either square metres or square kilometres, typical fields being a few hectares in size.

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