A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
Exajoules to Quettajoules
Convert Exajoule (EJ) to Quettajoule (QJ) instantly with an exact formula, conversion table, and FAQ.
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Convert exajoules (EJ) 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 = EJ × 1.000000000e-12
Results update instantly for Exajoules to Quettajoules conversions.
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Formula
QJ = EJ × 1.000000000e-12
EJ = QJ × 1000000000000
Conversion table
| 1 EJ | 1.000000e-12 QJ |
| 5 EJ | 5.000000e-12 QJ |
| 10 EJ | 1.000000e-11 QJ |
| 20 EJ | 2.000000e-11 QJ |
| 50 EJ | 5.000000e-11 QJ |
| 100 EJ | 1.000000e-10 QJ |
| 500 EJ | 5.000000e-10 QJ |
| 1000 EJ | 1.000000e-09 QJ |
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How the formula works
Both exajoule and quettajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in exajoules by 1.000000000e-12 to get quettajoules. To reverse the conversion, multiply a quettajoule value by 1000000000000 to get back to exajoules.
Frequently asked questions
What is Exajoule (EJ)?
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
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 exajoules to quettajoules?
Multiply the exajoule value by 1.000000000e-12 to get the equivalent in quettajoules. For example, 5 EJ × 1.000000000e-12 = 5.000000e-12 QJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-12 is an exact, non-rounded value.
Can I convert quettajoules back to exajoules?
Yes. Divide the quettajoule value by 1.000000000e-12, or multiply it by 1000000000000, to get exajoules.
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About converting exajoules to quettajoules
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix. 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 exajoules 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.