Convert square meter to barn
Barn
The barn (b) is a unit of area used in nuclear and particle physics to express the cross-sectional area of atomic nuclei and nuclear reactions, equal to 10⁻²⁸ square metres (100 fm²). The unit was coined by American physicists during the Manhattan Project, humorously describing uranium nuclei as being "as big as a barn" relative to other nuclear targets. It is not part of the SI system but is accepted for use with SI units. Submultiples such as the millibarn (mb) and microbarn (μb) are also commonly used in particle physics.
Square metre to Barn conversion table
| Square metre | Barn | Barn | Square metre |
|---|---|---|---|
| 1 | 1E+28 | 1 | 1E-28 |
| 2 | 2E+28 | 2 | 2E-28 |
| 3 | 3E+28 | 3 | 3E-28 |
| 5 | 5E+28 | 5 | 5E-28 |
| 10 | 1E+29 | 10 | 1E-27 |
| 20 | 2E+29 | 20 | 2E-27 |
| 25 | 2.5E+29 | 25 | 2.5E-27 |
| 50 | 5E+29 | 50 | 5E-27 |
| 100 | 1E+30 | 100 | 1E-26 |
| 250 | 2.5E+30 | 250 | 2.5E-26 |
| 500 | 5E+30 | 500 | 5E-26 |
| 1000 | 1E+31 | 1000 | 1E-25 |
How to convert Square metre to Barn
1 m^2 = 1E+28 b. To convert any value, multiply it by 1E+28. For example, 25 m^2 = 2.5E+29 b.
Frequently asked questions
- How many b are there in one m^2?
- One m^2 is equal to 1E+28 b.
- How do you convert Square metre to Barn?
- Multiply the value in Square metre by 1E+28 to get the result in Barn.
- How much is 25 m^2 in b?
- 25 m^2 is equal to 2.5E+29 b.
- How do you convert Barn back to Square metre?
- Divide by the same factor: multiply the value in Barn by 1E-28 to get Square metre.