To convert square nautical miles to square miles, multiply the value by 1.32429. To go the other way, multiply square miles by 0.75512 to get square nautical miles.
| Square Nautical Miles (NM²) | Square Miles (mi²) |
|---|---|
| 1 NM² | 1.32429 mi² |
| 2 NM² | 2.64859 mi² |
| 5 NM² | 6.62147 mi² |
| 10 NM² | 13.2429 mi² |
| 20 NM² | 26.4859 mi² |
| 50 NM² | 66.2147 mi² |
| 100 NM² | 132.429 mi² |
| 500 NM² | 662.147 mi² |
| 1,000 NM² | 1,324.29 mi² |
250 NM² × 1.32429 = 331.073 mi²
Try this example →Square nautical mile (NM²). A square nautical mile is 3,429,904 m², used for sea areas and fishing grounds.
Square mile (mi²). A square mile is 640 acres (2.58999 km²).
There are 1.32429 square miles in one square nautical mile.
Multiply the number of square nautical miles by 1.32429. For example, 10 square nautical miles equal 13.2429 square miles.
One square mile equals 0.75512 square nautical miles.