Millibarns to barns
Type a value in mb to get it in b instantly.
0.001b
That's 100,000,000,000,000,000× as big as a neutrino interaction, while ordinary neutron scattering is 4,000× bigger. A disc that size would have a radius of about 0.1784 fm.
What it means
How big a target is that?
A cross section is an effective area, not a physical one. A strongly absorbing nucleus can present a target far larger than itself.
The math
How to convert mb to b
To convert millibarns to barns, multiply by 0.001.
Example: 1 mb × 0.001 = 0.001 b.
In the other direction, 1 b = 1,000 mb.
Every unit
Your cross section in every unit
Tables
mb to b conversion table
| mb | b |
|---|---|
| 0.001 mb | 1×10⁻⁶ b |
| 0.01 mb | 1×10⁻⁵ b |
| 0.1 mb | 0.0001 b |
| 1 mb | 0.001 b |
| 10 mb | 0.01 b |
| 100 mb | 0.1 b |
| 585 mb | 0.585 b |
| 1,000 mb | 1 b |
| 10,000 mb | 10 b |
| 1,000,000 mb | 1,000 b |
b to mb conversion table
| b | mb |
|---|---|
| 0.001 b | 1 mb |
| 0.01 b | 10 mb |
| 0.1 b | 100 mb |
| 1 b | 1,000 mb |
| 10 b | 10,000 mb |
| 100 b | 100,000 mb |
| 585 b | 585,000 mb |
| 1,000 b | 1,000,000 mb |
| 10,000 b | 10,000,000 mb |
| 1,000,000 b | 1×10⁹ mb |
Quick answers
Quick answers
- How many b is 1 mb?
- 1 mb is 0.001 b.
- How many b is 10 mb?
- 10 mb is 0.01 b.
The units
About these units
Millibarns (mb)
A thousandth of a barn, common in nuclear reaction data.
Barns (b)
10⁻²⁸ m², roughly the area of a heavy nucleus.
Keep going