A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Decajoules to Kilojoules
Convert Decajoule (daJ) to Kilojoule (kJ) instantly with an exact formula, conversion table, and FAQ.
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Convert decajoules (daJ) 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 = daJ × 0.01
Results update instantly for Decajoules to Kilojoules conversions.
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Formula
kJ = daJ × 0.01
daJ = kJ × 100
Conversion table
| 1 daJ | 0.010000 kJ |
| 5 daJ | 0.050000 kJ |
| 10 daJ | 0.100000 kJ |
| 20 daJ | 0.200000 kJ |
| 50 daJ | 0.500000 kJ |
| 100 daJ | 1 kJ |
| 500 daJ | 5 kJ |
| 1000 daJ | 10 kJ |
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How the formula works
Both decajoule and kilojoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in decajoules by 0.01 to get kilojoules. To reverse the conversion, multiply a kilojoule value by 100 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 Kilojoule (kJ)?
A kilojoule (kJ) equals 1,000 joules and is commonly used on nutrition labels outside the United States.
How do I convert decajoules to kilojoules?
Multiply the decajoule value by 0.01 to get the equivalent in kilojoules. For example, 5 daJ × 0.01 = 0.050000 kJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.01 is an exact, non-rounded value.
Can I convert kilojoules back to decajoules?
Yes. Divide the kilojoule value by 0.01, or multiply it by 100, to get decajoules.
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About converting decajoules to kilojoules
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca 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 decajoules 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.