To convert square miles to barns, multiply the value by 2.58999 × 10³⁴. To go the other way, multiply barns by 3.86102 × 10⁻³⁵ to get square miles.
| Square Miles (mi²) | Barns (b) |
|---|---|
| 1 mi² | 2.58999 × 10³⁴ b |
| 2 mi² | 5.17998 × 10³⁴ b |
| 5 mi² | 1.29499 × 10³⁵ b |
| 10 mi² | 2.58999 × 10³⁵ b |
| 20 mi² | 5.17998 × 10³⁵ b |
| 50 mi² | 1.29499 × 10³⁶ b |
| 100 mi² | 2.58999 × 10³⁶ b |
| 500 mi² | 1.29499 × 10³⁷ b |
| 1,000 mi² | 2.58999 × 10³⁷ b |
Square mile (mi²). A square mile is 640 acres (2.58999 km²).
Barn (b). A barn is 10⁻²⁸ m², the unit particle physicists use for nuclear cross-sections.
There are 2.58999 × 10³⁴ barns in one square mile.
Multiply the number of square miles by 2.58999 × 10³⁴. For example, 10 square miles equal 2.58999 × 10³⁵ barns.
One barn equals 3.86102 × 10⁻³⁵ square miles.