To convert square kilometers to barns, multiply the value by 1 × 10³⁴. To go the other way, multiply barns by 1 × 10⁻³⁴ to get square kilometers.
| Square Kilometers (km²) | Barns (b) |
|---|---|
| 1 km² | 1 × 10³⁴ b |
| 2 km² | 2 × 10³⁴ b |
| 5 km² | 5 × 10³⁴ b |
| 10 km² | 1 × 10³⁵ b |
| 20 km² | 2 × 10³⁵ b |
| 50 km² | 5 × 10³⁵ b |
| 100 km² | 1 × 10³⁶ b |
| 500 km² | 5 × 10³⁶ b |
| 1,000 km² | 1 × 10³⁷ b |
Square kilometer (km²). A square kilometer is one million square meters (100 hectares), used for countries, cities and lakes.
Barn (b). A barn is 10⁻²⁸ m², the unit particle physicists use for nuclear cross-sections.
There are 1 × 10³⁴ barns in one square kilometer.
Multiply the number of square kilometers by 1 × 10³⁴. For example, 10 square kilometers equal 1 × 10³⁵ barns.
One barn equals 1 × 10⁻³⁴ square kilometers.