Convert Square Nautical Miles to Square Miles
Convert Square Nautical Miles (nmi²) to Square Miles (mi²) instantly and accurately.
Conversion Formula
mi² = nmi² × 1.324293338
About Square Nautical Miles
A square nautical mile (nmi²) equals the area of a square with sides of one nautical mile (1,852 m), giving approximately 3,429,904 m² - about 343 hectares. This unit is used in maritime and aviation contexts to describe patrol zones, territorial extents, and maritime boundaries. Exclusive Economic Zones (EEZs) and military operating areas are often quoted in square nautical miles. One square nautical mile is approximately 1.32 square statute miles.
About Square Miles
A square mile (mi²) is an imperial unit of area equal to a square with sides of one mile (5,280 ft × 5,280 ft). It is used for measuring large land areas like counties, states, and countries in the United States. Los Angeles covers about 503 mi², Rhode Island (smallest US state) is roughly 1,214 mi², and Alaska is about 665,384 mi². This unit is standard in American geography, land surveying, and regional planning.
Quick Reference Table
| Square Nautical Miles (nmi²) | Square Miles (mi²) |
|---|---|
| 1 nmi² | 1.32429 mi² |
| 2 nmi² | 2.64859 mi² |
| 5 nmi² | 6.62147 mi² |
| 10 nmi² | 13.2429 mi² |
| 25 nmi² | 33.1073 mi² |
| 50 nmi² | 66.2147 mi² |
| 100 nmi² | 132.429 mi² |