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Conversion Formula:
Convert League to Nautical Mile (league to nmi) instantly with accurate, readable results.
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League - traditional distance unit
League is a historical unit of length with region-dependent values, commonly taken as about three miles on land; a nautical league is standardized as three nautical miles. Used historically in European surveying, travel descriptions, and maritime contexts
- Symbol: none standardized
- System: Historical (European/Imperial/Maritime)
- Common relations (land): 1 league ≈ 3 statute miles ≈ 4.828 km (English/US usage); varied by country (e.g., French/Spanish leagues ranged ~4–7 km)
- Nautical league (standardized): 1 nautical league = 3 nmi = 3 × 1,852 m = 5,556 m (exact) ≈ 5.556 km
- Typical examples: literary distances (“several leagues”); maritime references (e.g., coastal limits expressed in nautical leagues)
Nautical mile (nmi) — unit for marine and air navigation defined exactly as 1,852 meters
Closely tied to Earth’s geometry; one minute of latitude is approximately one nautical mile. Speeds at sea and in air use knots.
- Symbols: nmi, NM
- Systems: Maritime/Aviation
- Exact relations: 1 nmi = 1,852 m = 1.852 km (exact)
- Imperial/US equivalents: 1 nmi ≈ 1.15078 mi ≈ 6,076.11549 ft
- Typical examples: charted distances; 1 knot = 1 nmi/h