Convert Miles per US Gallon to Nautical Miles per Liter
Convert Miles per US Gallon (mpg (US)) to Nautical Miles per Liter (nmi/L) instantly and accurately.
Conversion Formula
nmi/L = mpg (US) × 4.356174083
About Miles per US Gallon
Miles per US gallon (mpg(US)) is the US and Canadian standard, displayed on every EPA Monroney sticker and used in CAFE regulations. The US gallon = 3.785411784 L; 1 mile = 1.609344 km. 2026 CAFE passenger car standard: ~49 mpg. Toyota Prius Prime: 52 mpg; Tesla Model 3: 132 MPGe. Historical: Ford Model T 21-25 mpg; 1973 US full-size cars 10-15 mpg. NASCAR at race speed: 4-5 mpg; Class 8 semi: 5-8 mpg. L/100km = 235.21458/mpg(US): 30 mpg = 7.84 L/100km; 50 mpg = 4.71 L/100km.
About Nautical Miles per Liter
Nautical miles per liter (nmi/L) quantifies how far a vessel travels on one liter of fuel. 1 nmi/L = 1.852 km/L. Typical values: sailing yacht under auxiliary diesel ~0.2-0.5 nmi/L; fast 35-knot catamaran ferry ~0.003-0.008 nmi/L; outboard RIB at planning speed ~0.01-0.04 nmi/L. A sportsboat with a 200 L tank at 0.08 nmi/L has ~16 nmi theoretical range, reduced by 30-40% safety margin. Maritime energy efficiency programs under MARPOL Annex VI reference nmi/L before normalising for cargo capacity. 1 nmi/L = 1.852 km/L.
Quick Reference Table
| Miles per US Gallon (mpg (US)) | Nautical Miles per Liter (nmi/L) |
|---|---|
| 1 mpg (US) | 0.229559 nmi/L |
| 2 mpg (US) | 0.459118 nmi/L |
| 5 mpg (US) | 1.1478 nmi/L |
| 10 mpg (US) | 2.29559 nmi/L |
| 25 mpg (US) | 5.73898 nmi/L |
| 50 mpg (US) | 11.478 nmi/L |
| 100 mpg (US) | 22.9559 nmi/L |