Power and Energy
kJtoGJ
Convert kilojoules (kJ) to gigajoules (GJ).
Factor1 kJ = 1e-6 GJ
Converter
kJ
Accepts numbers or expressions, e.g. 150 + 14.7
Result
GJ
Rendered to 6 significant figures.
Formula
Formula
GJ = kJ × 1e-6
Multiply any value in kilojoules by 1e-6 to obtain the value in gigajoules.
Worked example
Convert 1.00000e+6 kJ to GJ.
- 01Start with 1.00000e+6 kJ.
- 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 GJ.
Result1.00000e+6 kJ = 1 GJ
Conversion table
| kJ | GJ |
|---|---|
| 1 | 1e-6 |
| 2 | 2e-6 |
| 5 | 5e-6 |
| 10 | 1e-5 |
| 20 | 2e-5 |
| 50 | 5e-5 |
| 100 | 0.0001 |
| 200 | 0.0002 |
| 500 | 0.0005 |
| 1000 | 0.001 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from kJ to GJ?
1 kJ equals 1e-6 GJ. To convert, multiply the value in kilojoules by 1e-6.
How do I convert 1 kJ to GJ?
1 kJ = 1e-6 GJ. For any value, multiply by 1e-6.
How do I convert GJ back to kJ?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 GJ = 1.00000e+6 kJ.
When would I need to convert kilojoule to gigajoule?
Energy conversions are needed when reconciling fuel/electrical billing, calculating thermal duties, and aligning calorimetry or HHV/LHV figures across data sources.
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).