Square meter and barn are the units for measurement of area. The simple logical to understand the reason why we require too many units in order to measure the same quantity since the reliability of measurement differs when they quantity to measure increases. Here in this section, we will talk about the square meter and bran, first, we will talk about what is square meter? And what is barn? And finally we will provide you equation using which you can convert square meter to a barn.

## square meter to barn

__Square meter__

- Square meter in the unit which is used to for measurement of area and this is the area unit which is established worldwide to be the SI units for Area. One square meter is the area equal to the area of the square whose length of the side is equal to one meter.

- The square meter is the area unit which is used when we consider a moderate quantity of area. Mainly used when we consider the area for a constructional purpose, as a development of roads etc.

- The square meter is equal to the 1/10,000 of an area of the square whose long side is equal to one 1 kilometers.

**BARN **

- A barn is unit of area which is particularly used in nuclear physics, this unit is mainly used when we consider the area of the cross-section of the nucleus and this unit has great significance in nuclear reactions.
- The symbol of bran is “b” and this is a very small unit for measurement of area, this unit has a great significance in the field of high-energy particles.
- One bran in terms of square meter is equal to 1.0E-28 meter square.

**Conversion, **use he under given equation in order to convert square meter to bran.

- one square meter = 1.0E-28 brans
- One bran = 1.0E-28 square meters.