# Online Barn (b) to other area measurement units converter.

**Barn (b)** is off-system unit area, is used in nuclear physics to measure the effective cross section of nuclear reactions.

This online converter will allow you to convert easily barn in to other units of area.

## Area converter. Barn

Enter the area value in barn:

You can input only integer numbers, decimals or fractions in this online calculator (-2.4, 5/7, ...). More in-depth information read at these rules.

Metric:

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**The metric system** is the general name of the international decimal system of units based on the use of meter and the kilogram.

square kilometer (km^{2}) | 0 |

hectare | 0 |

decare | 0 |

are (a) | 0 |

square meter (m^{2}) | 0 |

square decimeter (dm^{2}) | 0 |

square centimeter (cm^{2}) | 0 |

square millimeter (mm^{2}) | 0 |

square nanometer (nm^{2}) | 0 |

British /American:

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**English (American) system of measures** based on the British measures. English system of measures since 1958 have the relationship with the metric system by defining the inch as equal to 2.54 cm.

township | 0 |

square mile | 0 |

homestead | 0 |

acre | 0 |

rood | 0 |

square rod | 0 |

perch | 0 |

square yard (yd^{2}) | 0 |

square foot (ft^{2}) | 0 |

square inch (in^{2}) | 0 |

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