A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
Quettajoules to Ergs
Convert Quettajoule (QJ) to Erg (erg) instantly with an exact formula, conversion table, and FAQ.
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Convert quettajoules (QJ) 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 = QJ × 1.000000000e+37
Results update instantly for Quettajoules to Ergs conversions.
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Formula
erg = QJ × 1.000000000e+37
QJ = erg × 1.000000000e-37
Conversion table
| 1 QJ | 1.000000e+37 erg |
| 5 QJ | 5.000000e+37 erg |
| 10 QJ | 1.000000e+38 erg |
| 20 QJ | 2.000000e+38 erg |
| 50 QJ | 5.000000e+38 erg |
| 100 QJ | 1.000000e+39 erg |
| 500 QJ | 5.000000e+39 erg |
| 1000 QJ | 1.000000e+40 erg |
Related conversions
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How the formula works
Both quettajoule and erg measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in quettajoules by 1.000000000e+37 to get ergs. To reverse the conversion, multiply a erg value by 1.000000000e-37 to get back to quettajoules.
Frequently asked questions
What is Quettajoule (QJ)?
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
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 quettajoules to ergs?
Multiply the quettajoule value by 1.000000000e+37 to get the equivalent in ergs. For example, 5 QJ × 1.000000000e+37 = 5.000000e+37 erg.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+37 is an exact, non-rounded value.
Can I convert ergs back to quettajoules?
Yes. Divide the erg value by 1.000000000e+37, or multiply it by 1.000000000e-37, to get quettajoules.
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About converting quettajoules to ergs
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix. 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 quettajoules 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.