Convert Miles per US Gallon to Kilometers per US Gallon
Convert Miles per US Gallon (mpg (US)) to Kilometers per US Gallon (km/US gal) instantly and accurately.
Conversion Formula
km/US gal = mpg (US) × 0.6213711922
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 Kilometers per US Gallon
Kilometers per US gallon (km/US gal) appears in regions where metric road distances coexist with US gallon fuel pricing - the US-Mexico border zone, parts of Latin America, and the Caribbean. 1 km/US gal = 1/3.785411784 km/L = 0.264172 km/L. A typical car at 12.75 km/L = 48.3 km/US gal; a scooter at 35 km/L = 132 km/US gal. Mexican Federal District fleet databases and Central American logistics records use this unit when US gallon fuel costs are referenced in kilometre-based route planning. 1 km/US gal = 0.264172 km/L.
Quick Reference Table
| Miles per US Gallon (mpg (US)) | Kilometers per US Gallon (km/US gal) |
|---|---|
| 1 mpg (US) | 1.60934 km/US gal |
| 2 mpg (US) | 3.21869 km/US gal |
| 5 mpg (US) | 8.04672 km/US gal |
| 10 mpg (US) | 16.0934 km/US gal |
| 25 mpg (US) | 40.2336 km/US gal |
| 50 mpg (US) | 80.4672 km/US gal |
| 100 mpg (US) | 160.934 km/US gal |