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Fuel Efficiency Mass converter

Convert fuel energy per mass and reciprocal specific fuel consumption.

Unit converter
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1 J/kg = 0.001 kJ/kg

Results rounded to 12 significant digits.

All fuel efficiency mass conversions

Choose your starting unit. Each direction has its own calculator, formula, and examples.

Convert Joules per kilogram

Convert Kilojoules per kilogram

Convert Megajoules per kilogram

Convert Kilowatt-hours per kilogram

Convert Btu IT per pound

Convert Grams per kilowatt-hour

Using fuel efficiency mass measurements

This family describes energy content or energy-normalized fuel use, not kilometers per kilogram. Heating values depend on the fuel and on higher versus lower heating-value conventions. Grams per kWh is the reciprocal of energy per mass. Carry the same physical assumptions into subsequent physics calculations.

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Fuel Efficiency MassJoules per kilogram to kilojoules per kilogramFuel Efficiency MassJoules per kilogram to megajoules per kilogramFuel Efficiency MassJoules per kilogram to kilowatt-hours per kilogramFuel Efficiency MassJoules per kilogram to Btu IT per poundFuel Efficiency MassJoules per kilogram to grams per kilowatt-hourFuel Efficiency MassKilojoules per kilogram to joules per kilogram