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Power and Energy

kJtoerg

Convert kilojoules (kJ) to ergs (erg).

Factor1 kJ = 1e+10 erg

Converter

kJ

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

Result
1e+10erg

Rendered to 6 significant figures.

Formula

Formula
erg = kJ × 1e+10

Multiply any value in kilojoules by 1e+10 to obtain the value in ergs.

Worked example

Convert 1 kJ to erg.

  1. 01Start with 1 kJ.
  2. 02Multiply by the conversion factor: 1 × 1e+10 = 1e+10 erg.
Result1 kJ = 1e+10 erg

Conversion table

kJerg
11e+10
22e+10
55e+10
101e+11
202e+11
505e+11
1001e+12
2002e+12
5005e+12
10001e+13

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from kJ to erg?
1 kJ equals 1e+10 erg. To convert, multiply the value in kilojoules by 1e+10.
How do I convert 1 kJ to erg?
1 kJ = 1e+10 erg. For any value, multiply by 1e+10.
How do I convert erg back to kJ?
Divide by the same factor — or equivalently, multiply by 1e-10. So 1 erg = 1e-10 kJ.
When would I need to convert kilojoule to erg?
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).

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