Universal Measurement & Unit Converters

Convert length, mass, temperature, area, volume, and fuel economy seamlessly between metric and imperial systems.

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Convert between metric and imperial units for length, mass, volume, temperature, and speed.

Convert instantly between US MPG, UK Imperial MPG, L/100km, and km/L with trip fuel cost estimation.

Frequently Asked Questions About Unit Converters

Because MPG measures distance per volume and L/100km measures volume per distance, the relationship is inverse: L/100km = 235.214 / US MPG.

Fahrenheit = (Celsius × 9/5) + 32. To convert from Fahrenheit to Celsius, use: Celsius = (Fahrenheit - 32) × 5/9.

Yes. Our converter maintains floating point precision for micro-units (micrometers, milligrams) through mega-units without precision loss.