Convert Square Nautical Miles to Townships
Convert Square Nautical Miles (nmi²) to Townships (twp) instantly and accurately.
Conversion Formula
twp = nmi² × 0.03678592606
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 Townships
A township (twp) is a large survey unit used in the US Public Land Survey System, defined as a square with sides of 6 statute miles, giving exactly 36 square miles or approximately 93,240,000 m². Each township is subdivided into 36 one-square-mile sections of 640 acres each. The Township and Range system is how most US land west of Ohio was divided and sold; township numbers and names still appear in legal land descriptions, county records, and geographic placenames across the American Midwest and West.
Quick Reference Table
| Square Nautical Miles (nmi²) | Townships (twp) |
|---|---|
| 1 nmi² | 0.0367859 twp |
| 2 nmi² | 0.0735719 twp |
| 5 nmi² | 0.18393 twp |
| 10 nmi² | 0.367859 twp |
| 25 nmi² | 0.919648 twp |
| 50 nmi² | 1.8393 twp |
| 100 nmi² | 3.67859 twp |