A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix.
Quettajoules to Exajoules
Convert Quettajoule (QJ) to Exajoule (EJ) instantly with an exact formula, conversion table, and FAQ.
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Convert quettajoules (QJ) to exajoules (EJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
EJ = QJ × 1000000000000
Results update instantly for Quettajoules to Exajoules conversions.
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Formula
EJ = QJ × 1000000000000
QJ = EJ × 1.000000000e-12
Conversion table
| 1 QJ | 1.000000e+12 EJ |
| 5 QJ | 5.000000e+12 EJ |
| 10 QJ | 1.000000e+13 EJ |
| 20 QJ | 2.000000e+13 EJ |
| 50 QJ | 5.000000e+13 EJ |
| 100 QJ | 1.000000e+14 EJ |
| 500 QJ | 5.000000e+14 EJ |
| 1000 QJ | 1.000000e+15 EJ |
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How the formula works
Both quettajoule and exajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in quettajoules by 1000000000000 to get exajoules. To reverse the conversion, multiply a exajoule value by 1.000000000e-12 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 Exajoule (EJ)?
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
How do I convert quettajoules to exajoules?
Multiply the quettajoule value by 1000000000000 to get the equivalent in exajoules. For example, 5 QJ × 1000000000000 = 5.000000e+12 EJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1000000000000 is an exact, non-rounded value.
Can I convert exajoules back to quettajoules?
Yes. Divide the exajoule value by 1000000000000, or multiply it by 1.000000000e-12, to get quettajoules.
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About converting quettajoules to exajoules
A quettajoule (QJ) is a metric-prefixed unit of energy equal to 1030 joules, using the SI quetta prefix. A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
Use this calculator to move between quettajoules and exajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.