A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Decajoules to Gigajoules
Convert Decajoule (daJ) to Gigajoule (GJ) instantly with an exact formula, conversion table, and FAQ.
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Convert decajoules (daJ) 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 = daJ × 1.000000000e-08
Results update instantly for Decajoules to Gigajoules conversions.
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Formula
GJ = daJ × 1.000000000e-08
daJ = GJ × 100000000
Conversion table
| 1 daJ | 1.000000e-08 GJ |
| 5 daJ | 5.000000e-08 GJ |
| 10 daJ | 1.000000e-07 GJ |
| 20 daJ | 2.000000e-07 GJ |
| 50 daJ | 5.000000e-07 GJ |
| 100 daJ | 0.000001 GJ |
| 500 daJ | 0.000005 GJ |
| 1000 daJ | 0.000010 GJ |
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How the formula works
Both decajoule and gigajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in decajoules by 1.000000000e-08 to get gigajoules. To reverse the conversion, multiply a gigajoule value by 100000000 to get back to decajoules.
Frequently asked questions
What is Decajoule (daJ)?
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca 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 decajoules to gigajoules?
Multiply the decajoule value by 1.000000000e-08 to get the equivalent in gigajoules. For example, 5 daJ × 1.000000000e-08 = 5.000000e-08 GJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 1.000000000e-08 is an exact, non-rounded value.
Can I convert gigajoules back to decajoules?
Yes. Divide the gigajoule value by 1.000000000e-08, or multiply it by 100000000, to get decajoules.
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About converting decajoules to gigajoules
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca 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 decajoules 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.