A decijoule (dJ) is a metric-prefixed unit of energy equal to 10-1 joules, a fraction of a single joule, using the SI deci prefix.
Decijoules to Gigajoules
Convert Decijoule (dJ) to Gigajoule (GJ) instantly with an exact formula, conversion table, and FAQ.
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Convert decijoules (dJ) to gigajoules (GJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix.
GJ = dJ × 1.000000000e-10
Results update instantly for Decijoules to Gigajoules conversions.
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Formula
GJ = dJ × 1.000000000e-10
dJ = GJ × 10000000000
Conversion table
| 1 dJ | 1.000000e-10 GJ |
| 5 dJ | 5.000000e-10 GJ |
| 10 dJ | 1.000000e-09 GJ |
| 20 dJ | 2.000000e-09 GJ |
| 50 dJ | 5.000000e-09 GJ |
| 100 dJ | 1.000000e-08 GJ |
| 500 dJ | 5.000000e-08 GJ |
| 1000 dJ | 1.000000e-07 GJ |
Related conversions
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How the formula works
Both decijoule and gigajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in decijoules by 1.000000000e-10 to get gigajoules. To reverse the conversion, multiply a gigajoule value by 10000000000 to get back to decijoules.
Frequently asked questions
What is Decijoule (dJ)?
A decijoule (dJ) is a metric-prefixed unit of energy equal to 10-1 joules, a fraction of a single joule, using the SI deci prefix.
What is Gigajoule (GJ)?
A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix.
How do I convert decijoules to gigajoules?
Multiply the decijoule value by 1.000000000e-10 to get the equivalent in gigajoules. For example, 5 dJ × 1.000000000e-10 = 5.000000e-10 GJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-10 is an exact, non-rounded value.
Can I convert gigajoules back to decijoules?
Yes. Divide the gigajoule value by 1.000000000e-10, or multiply it by 10000000000, to get decijoules.
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About converting decijoules to gigajoules
A decijoule (dJ) is a metric-prefixed unit of energy equal to 10-1 joules, a fraction of a single joule, using the SI deci prefix. A gigajoule (GJ) is a metric-prefixed unit of energy equal to 109 joules, using the SI giga prefix.
Use this calculator to move between decijoules and gigajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.