▸ processconvert
Specific Properties

kWh/kgtoMJ/kg

Convert kilowatt-hours per kilogram (kWh/kg) to megajoules per kilogram (MJ/kg).

Factor1 kWh/kg = 3.6 MJ/kg

Converter

kWh/kg

Accepts numbers or expressions, e.g. 150 + 14.7

Result
3.6MJ/kg

Rendered to 6 significant figures.

Formula

Formula
MJ/kg = kWh/kg × 3.6

Multiply any value in kilowatt-hours per kilogram by 3.6 to obtain the value in megajoules per kilogram.

Worked example

Convert 1 kWh/kg to MJ/kg.

  1. 01Start with 1 kWh/kg.
  2. 02Multiply by the conversion factor: 1 × 3.6 = 3.6 MJ/kg.
Result1 kWh/kg = 3.6 MJ/kg

Conversion table

kWh/kgMJ/kg
13.6
27.2
518
1036
2072
50180
100360
200720
5001800
10003600

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kWh/kg to MJ/kg?
1 kWh/kg equals 3.6 MJ/kg. To convert, multiply the value in kilowatt-hours per kilogram by 3.6.
How do I convert 1 kWh/kg to MJ/kg?
1 kWh/kg = 3.6 MJ/kg. For any value, multiply by 3.6.
How do I convert MJ/kg back to kWh/kg?
Divide by the same factor — or equivalently, multiply by 0.2777778. So 1 MJ/kg = 0.277778 kWh/kg.
When would I need to convert kilowatt-hour per kilogram to megajoule per kilogram?
Specific-energy conversions between kWh/kg and MJ/kg are needed in fuel-property datasheets (HHV/LHV), thermodynamic state calculations, battery energy-density comparisons, and combustion analysis. kJ/kg is the SI standard; BTU/lb is common in US fuel specifications.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).

Related conversions