A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix.
Exajoules to Kilojoules
Convert Exajoule (EJ) to Kilojoule (kJ) instantly with an exact formula, conversion table, and FAQ.
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Convert exajoules (EJ) to kilojoules (kJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
kJ = EJ × 1.000000000e+15
Results update instantly for Exajoules to Kilojoules conversions.
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Formula
kJ = EJ × 1.000000000e+15
EJ = kJ × 1.000000000e-15
Conversion table
| 1 EJ | 1.000000e+15 kJ |
| 5 EJ | 5.000000e+15 kJ |
| 10 EJ | 1.000000e+16 kJ |
| 20 EJ | 2.000000e+16 kJ |
| 50 EJ | 5.000000e+16 kJ |
| 100 EJ | 1.000000e+17 kJ |
| 500 EJ | 5.000000e+17 kJ |
| 1000 EJ | 1.000000e+18 kJ |
Related conversions
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How the formula works
Both exajoule and kilojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in exajoules by 1.000000000e+15 to get kilojoules. To reverse the conversion, multiply a kilojoule value by 1.000000000e-15 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 Kilojoule (kJ)?
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
How do I convert exajoules to kilojoules?
Multiply the exajoule value by 1.000000000e+15 to get the equivalent in kilojoules. For example, 5 EJ × 1.000000000e+15 = 5.000000e+15 kJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e+15 is an exact, non-rounded value.
Can I convert kilojoules back to exajoules?
Yes. Divide the kilojoule value by 1.000000000e+15, or multiply it by 1.000000000e-15, to get exajoules.
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About converting exajoules to kilojoules
A exajoule (EJ) is a metric-prefixed unit of energy equal to 1018 joules, using the SI exa prefix. A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
Use this calculator to move between exajoules and kilojoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.