Popular travel converters
When you land somewhere new, signs and dashboards often use different units than at home. Use the shortcuts below or open the full converters for more precision.
Quick tools
Fuel: L/100 km ↔ US mpg
Enter fuel economy.
US mpg = 235.214583 ÷ (L/100 km). For UK mpg, km/L, and fair comparisons, read MPG to liters per 100 km.
Deep dive
For context, packing tips, and common mistakes, read our article International travel conversions. Renting a car abroad? See MPG, UK mpg, and L/100 km explained.
Frequently Asked Questions
Follow the units on local road signs. The United States and United Kingdom commonly use miles and mph; most other countries use kilometers and km/h. Convert when you compare routes, rental limits, or navigation apps that default to a different system.
Forecasts outside the US usually use Celsius. Use the temperature widget on this page or the full Fahrenheit to Celsius converter. Rough anchors: 0 °C is freezing, 20 °C is mild, 30 °C is hot.
US mpg is miles per US gallon. L/100 km is liters to drive 100 km; lower numbers mean better fuel economy. Convert with US mpg = 235.214583 ÷ (L/100 km), or use the fuel economy widget above. For tables and UK imperial mpg, see our fuel economy conversion guide.
No. UK mpg uses the imperial gallon, which is larger than the US gallon, so the same car gets a higher mpg number in the UK than in the US. Compare vehicles using L/100 km or convert carefully. See MPG to liters per 100 km and Units by country for gallon differences.
Read Essential unit conversions for international travel, MPG and L/100 km for drivers, and use the full converter for length, weight, volume, and more.