To convert square nautical miles to hectares, multiply the value by 342.99. To go the other way, multiply hectares by 0.00291553 to get square nautical miles.
| Square Nautical Miles (NM²) | Hectares (ha) |
|---|---|
| 1 NM² | 342.99 ha |
| 2 NM² | 685.981 ha |
| 5 NM² | 1,714.95 ha |
| 10 NM² | 3,429.9 ha |
| 20 NM² | 6,859.81 ha |
| 50 NM² | 17,149.5 ha |
| 100 NM² | 34,299 ha |
| 500 NM² | 171,495 ha |
| 1,000 NM² | 342,990 ha |
Square nautical mile (NM²). A square nautical mile is 3,429,904 m², used for sea areas and fishing grounds.
Hectare (ha). A hectare is 10,000 square meters (100 m × 100 m), the world's standard unit for farmland and large plots.
There are 342.99 hectares in one square nautical mile.
Multiply the number of square nautical miles by 342.99. For example, 10 square nautical miles equal 3,429.9 hectares.
One hectare equals 0.00291553 square nautical miles.