Fuel Economy Converter

How to use this tool

1. Enter the fuel economy value and select its current unit.
2. Choose the destination unit and precision; the conversion is calculated on this device.

Things to know

• Fuel consumption and fuel economy are reciprocals. All values must be greater than zero.
• One bounded decimal value and two allowlisted units. Fixed conversion arithmetic; display precision 1-30 significant digits. Values must be positive because conversion uses reciprocals.
• Use no more than 200,000 characters across the input and settings.
• Bounded decimal inputs mean at most 120 characters, zero or a magnitude from 10^-100 to 10^100. Arithmetic uses 40-digit precision; exponent suffixes are checked before parsing.