An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
Ergs to Quettajoules
Convert Erg (erg) to Quettajoule (QJ) instantly with an exact formula, conversion table, and FAQ.
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Convert ergs (erg) to quettajoules (QJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
QJ = erg × 1.000000000e-37
Results update instantly for Ergs to Quettajoules conversions.
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Formula
QJ = erg × 1.000000000e-37
erg = QJ × 1.000000000e+37
Conversion table
| 1 erg | 1.000000e-37 QJ |
| 5 erg | 5.000000e-37 QJ |
| 10 erg | 1.000000e-36 QJ |
| 20 erg | 2.000000e-36 QJ |
| 50 erg | 5.000000e-36 QJ |
| 100 erg | 1.000000e-35 QJ |
| 500 erg | 5.000000e-35 QJ |
| 1000 erg | 1.000000e-34 QJ |
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How the formula works
Both erg and quettajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ergs by 1.000000000e-37 to get quettajoules. To reverse the conversion, multiply a quettajoule value by 1.000000000e+37 to get back to ergs.
Frequently asked questions
What is Erg (erg)?
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule.
What is Quettajoule (QJ)?
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
How do I convert ergs to quettajoules?
Multiply the erg value by 1.000000000e-37 to get the equivalent in quettajoules. For example, 5 erg × 1.000000000e-37 = 5.000000e-37 QJ.
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 quettajoules back to ergs?
Yes. Divide the quettajoule value by 1.000000000e-37, or multiply it by 1.000000000e+37, to get ergs.
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About converting ergs to quettajoules
An erg is the CGS (centimeter-gram-second) unit of energy, equal to one ten-millionth of a joule. A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
Use this calculator to move between ergs and quettajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.