barn to square micrometer
Convert barn (b) to square micrometer (μm²). Use an editable area converter, conversion formula, and reference table.
1 b = 1e-16 μm²
Conversion formula
One barn equals 1e-16 square micrometer. Multiply your value in barn by this factor to get square micrometer. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 barn:5 × 1e-16 = 5e-16 μm²
Conversion table
| barn (b) | square micrometer (μm²) |
|---|---|
| 0.01 | 1e-18 |
| 0.1 | 1e-17 |
| 1 | 1e-16 |
| 2 | 2e-16 |
| 5 | 5e-16 |
| 10 | 1e-15 |
| 25 | 2.5e-15 |
| 50 | 5e-15 |
| 100 | 1e-14 |
| 1000 | 1e-13 |
About these measurements
Area measures a surface in two dimensions.
The base reference used here is the square meter. One barn is 1e-28 base units; one square micrometer is 1e-12 base units.
Important distinctions
Square a length factor to convert an area. Units with equal factors can have different conventional uses.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert b to μm²?
Multiply the quantity in b by 1e-16. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the square micrometer to barn converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
