A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
Kilojoules to Ergs
Convert Kilojoule (kJ) to Erg (erg) instantly with an exact formula, conversion table, and FAQ.
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Convert kilojoules (kJ) to ergs (erg) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
erg = kJ × 10000000000
Results update instantly for Kilojoules to Ergs conversions.
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Formula
erg = kJ × 10000000000
kJ = erg × 1.000000000e-10
Conversion table
| 1 kJ | 1.000000e+10 erg |
| 5 kJ | 5.000000e+10 erg |
| 10 kJ | 1.000000e+11 erg |
| 20 kJ | 2.000000e+11 erg |
| 50 kJ | 5.000000e+11 erg |
| 100 kJ | 1.000000e+12 erg |
| 500 kJ | 5.000000e+12 erg |
| 1000 kJ | 1.000000e+13 erg |
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How the formula works
Both kilojoule and erg measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in kilojoules by 10000000000 to get ergs. To reverse the conversion, multiply a erg value by 1.000000000e-10 to get back to kilojoules.
Frequently asked questions
What is Kilojoule (kJ)?
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
What is Erg (erg)?
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
How do I convert kilojoules to ergs?
Multiply the kilojoule value by 10000000000 to get the equivalent in ergs. For example, 5 kJ × 10000000000 = 5.000000e+10 erg.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 10000000000 is an exact, non-rounded value.
Can I convert ergs back to kilojoules?
Yes. Divide the erg value by 10000000000, or multiply it by 1.000000000e-10, to get kilojoules.
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About converting kilojoules to ergs
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States. An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Use this calculator to move between kilojoules and ergs accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.