Specific Energy converter
Wh/kg for batteries, MJ/kg and BTU/lb for fuels.
Specific energy is energy per unit mass. It is how battery cells are compared, typically 150 to 300 Wh/kg for lithium-ion, and how fuels are rated, with diesel near 45 MJ/kg. Convert between the battery, fuel and food-energy units.
Result
1 MJ/kg = 429.9226139 BTU/lb
Multiply the number of megajoules per kilogram by 429.922613929.
Results are rounded for display. Double-check values for critical work.
Popular specific energy conversions
All specific energy units
Joule per KilogramJ/kg
Watt-hour per KilogramWh/kg
Megajoule per KilogramMJ/kg
BTU per PoundBTU/lb
Kilojoule per KilogramkJ/kg
Kilocalorie per Kilogramkcal/kg
Kilowatt-hour per KilogramkWh/kg
Calorie per Gramcal/g