Convert Miles per pound to Nautical miles per pound
Convert Miles per pound (mi/lb) to Nautical miles per pound (nmi/lb) instantly and accurately.
Conversion Formula
nmi/lb = mi/lb × 0.8689762419
About Miles per pound
The mile per pound (mi/lb) equals ≈3.548 km/kg, the traditional US aviation mass-efficiency unit. Cessna 172 on avgas: ≈0.28-0.32 mi/lb; Piper Cherokee: ≈0.30-0.35 mi/lb; Boeing 737 MAX per seat: ≈0.10-0.15 mi/lb. US military aircraft fuel efficiency analyses and early NASA propellant studies used mi/lb. 1 mi/lb ≈3.548 km/kg = 1.609344/0.45359237 km/kg.
About Nautical miles per pound
The nautical mile per pound (nmi/lb) equals ≈4.083 km/kg, the standard fuel efficiency unit in US and NATO aviation engineering. Range planning for US Navy, USAF, and FAA-certified aircraft uses nmi/lb or gallons/nmi; ICAO fuel planning worksheets include nmi/lb columns. Typical values: commercial turbofan 0.10-0.25 nmi/lb; turboprop commuter 0.08-0.15 nmi/lb. 1 nmi/lb ≈4.083 km/kg.
Quick Reference Table
| Miles per pound (mi/lb) | Nautical miles per pound (nmi/lb) |
|---|---|
| 1 mi/lb | 0.868976 nmi/lb |
| 2 mi/lb | 1.73795 nmi/lb |
| 5 mi/lb | 4.34488 nmi/lb |
| 10 mi/lb | 8.68976 nmi/lb |
| 25 mi/lb | 21.7244 nmi/lb |
| 50 mi/lb | 43.4488 nmi/lb |
| 100 mi/lb | 86.8976 nmi/lb |