# Fuel Economy Converter

> Convert fuel economy between US mpg, Imperial mpg, kilometers per liter, miles per liter, and L per 100 km. Handles the inverse relationship of L/100 km carefully and requires positive values.

**URL:** https://www.calculatoranswers.com/fuel-economy-converter
**Category:** Converters

## Quick Answer

Convert fuel consumption values between metric and imperial systems. Enter the economy value and select units to calculate conversions between miles per gallon and liters per 100km.

## Definition

A fuel economy converter is a transportation measurement utility that translates vehicle fuel efficiency values between different unit systems. The converter supports conversions between distance-per-volume units (such as miles per gallon in US and UK standards) and volume-per-distance units (such as liters per one hundred kilometers). It applies reciprocal mathematical formulas to resolve the inverse relationship between these measurement styles. Drivers, automotive researchers, and international travelers use this tool to compare fuel efficiency ratings across different regions.

## How to Use

1. **Enter efficiency value** — Type the numerical fuel economy or consumption value you want to convert.
2. **Select original unit** — Choose the unit of measurement you are starting with, such as mpg or L/100km.
3. **Read converted values** — View the equivalent fuel consumption across US mpg, imperial mpg, and liters per 100km.

## Disclaimer

This calculator provides estimates for educational and planning purposes. Always consult a qualified professional for specific advice on financial, medical, legal, or other regulated decisions.

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