Convert barns (b) to square millimeters (mm²) with formulas, examples, and conversion tables.
To convert 1 barns to square millimeters, we divide by 1e+22 because one square millimeter equals exactly 1e+22 barns.
Since there are 1e+22 barns in every square millimeter, we divide our value by this factor:
So 1 barns = 1e-22 square millimeters.
To convert barns to square millimeters, divide the value by 1e+22.
1 square millimeter = 1e+22 barns
| Barns | Square Millimeters |
|---|---|
| 1 b | 1e-22 mm² |
| 2 b | 2e-22 mm² |
| 5 b | 5e-22 mm² |
| 10 b | 1e-21 mm² |
| 20 b | 2e-21 mm² |
| 25 b | 2.5e-21 mm² |
| 50 b | 5e-21 mm² |
| 100 b | 1e-20 mm² |
| 250 b | 2.5e-20 mm² |
| 500 b | 5e-20 mm² |
| 1000 b | 1e-19 mm² |
| Unit | 1 b = |
|---|---|
| Barns to Square Kilometers | 1e-34 km² |
| Barns to Hectares | 1e-32 ha |
| Barns to Square Meters | 1e-28 m² |
| Barns to Square Centimeters | 1e-24 cm² |
| Barns to Square Millimeters | 1e-22 mm² |
| Barns to Square Miles | 3.861e-35 mi² |
| Barns to Acres | 2.4711e-32 ac |
| Barns to Square Yards | 1.196e-28 yd² |
| Barns to Square Feet | 1.0764e-27 ft² |
| Barns to Square Inches | 1.55e-25 in² |
| Barns to Ares | 1e-30 a |