Power and Energy
ergtokJ
Convert ergs (erg) to kilojoules (kJ).
Factor1 erg = 1e-10 kJ
Converter
erg
Accepts numbers or expressions, e.g. 150 + 14.7
Result
kJ
Rendered to 6 significant figures.
Formula
Formula
kJ = erg × 1e-10
Multiply any value in ergs by 1e-10 to obtain the value in kilojoules.
Worked example
Convert 1e+10 erg to kJ.
- 01Start with 1e+10 erg.
- 02Multiply by the conversion factor: 1e+10 × 1e-10 = 1 kJ.
Result1e+10 erg = 1 kJ
Conversion table
| erg | kJ |
|---|---|
| 1 | 1e-10 |
| 2 | 2e-10 |
| 5 | 5e-10 |
| 10 | 1e-9 |
| 20 | 2e-9 |
| 50 | 5e-9 |
| 100 | 1e-8 |
| 200 | 2e-8 |
| 500 | 5e-8 |
| 1000 | 1e-7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from erg to kJ?
1 erg equals 1e-10 kJ. To convert, multiply the value in ergs by 1e-10.
How do I convert 1 erg to kJ?
1 erg = 1e-10 kJ. For any value, multiply by 1e-10.
How do I convert kJ back to erg?
Divide by the same factor — or equivalently, multiply by 1e+10. So 1 kJ = 1e+10 erg.
When would I need to convert erg to kilojoule?
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).