Convert Barns (b) to Square Miles (mi²) | b in mi²

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# Let's convert Barns (b) to Square Miles (mi²)

This quick and easy calculator will convert Barns (b) to Square Miles (mi²) and show formula, brief history on the units and quick maths for the conversion.

## Quick Reference for Converting Barns to Square Miles

Formula
mi² = b / 2.589988E+34
Quick Rough Maths
To get the Square Miles, divide the number of Barns by 2.589988E+22 trillion
Barns (b) in 1 Square Mile
There are 2.589988E+34 Barns in 1 Square Mile
Square Miles (mi²) in 1 barn
There are 0 Square Miles in 1 barn

## Unit Information

barn
/bɑːn/
Symbol: b
Unit System: Particle Physics

### What is the barn?

The barn is a unit of area and is used in particle physics with the symbol b.

It represents approximately the area of the cross-section of a uraneum nucleus, so is very small compared to most other recognised units of area.

It is also used to measure the interaction of a nucleus with an electric field gradient in nuclear quadrupole and magnetic resonance.

Square Mile
/skwɛːˌmʌɪl/
Symbol: mi²
Unit System: Imperial

### What is the Square Mile?

The square mile is a unit of area and is an imperial unit with the symbol mi².

One square mile is equal in area to a square with edges one mile in length.

The Romans established the square mile; computed through a system of feet, paces and marches. The square mile's existence still remains in some places; for example "The Square Mile" is a term often used to describe the very centre of London in the UK (which just so happens to measure 1mi²).

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