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Specific Properties

kJ/kgtoGJ/kg

Convert kilojoules per kilogram (kJ/kg) to gigajoules per kilogram (GJ/kg).

Factor1 kJ/kg = 1e-6 GJ/kg

Converter

kJ/kg

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

Result
1GJ/kg

Rendered to 6 significant figures.

Formula

Formula
GJ/kg = kJ/kg × 1e-6

Multiply any value in kilojoules per kilogram by 1e-6 to obtain the value in gigajoules per kilogram.

Worked example

Convert 1.00000e+6 kJ/kg to GJ/kg.

  1. 01Start with 1.00000e+6 kJ/kg.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 GJ/kg.
Result1.00000e+6 kJ/kg = 1 GJ/kg

Conversion table

kJ/kgGJ/kg
11e-6
22e-6
55e-6
101e-5
202e-5
505e-5
1000.0001
2000.0002
5000.0005
10000.001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kJ/kg to GJ/kg?
1 kJ/kg equals 1e-6 GJ/kg. To convert, multiply the value in kilojoules per kilogram by 1e-6.
How do I convert 1 kJ/kg to GJ/kg?
1 kJ/kg = 1e-6 GJ/kg. For any value, multiply by 1e-6.
How do I convert GJ/kg back to kJ/kg?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 GJ/kg = 1.00000e+6 kJ/kg.
When would I need to convert kilojoule per kilogram to gigajoule per kilogram?
Specific-energy conversions between kJ/kg and GJ/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).

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