A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
Kilocalories to Decajoules
Convert Kilocalorie (kcal) to Decajoule (daJ) instantly with an exact formula, conversion table, and FAQ.
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Convert kilocalories (kcal) to decajoules (daJ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
daJ = kcal × 418.4
Results update instantly for Kilocalories to Decajoules conversions.
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Formula
daJ = kcal × 418.4
kcal = daJ × 0.002390057361
Conversion table
| 1 kcal | 418.400000 daJ |
| 5 kcal | 2092 daJ |
| 10 kcal | 4184 daJ |
| 20 kcal | 8368 daJ |
| 50 kcal | 20920 daJ |
| 100 kcal | 41840 daJ |
| 500 kcal | 209200 daJ |
| 1000 kcal | 418400 daJ |
Related conversions
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How the formula works
Both kilocalorie and decajoule measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in kilocalories by 418.4 to get decajoules. To reverse the conversion, multiply a decajoule value by 0.002390057361 to get back to kilocalories.
Frequently asked questions
What is Kilocalorie (kcal)?
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
What is Decajoule (daJ)?
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
How do I convert kilocalories to decajoules?
Multiply the kilocalorie value by 418.4 to get the equivalent in decajoules. For example, 5 kcal × 418.4 = 2092 daJ.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 418.4 is an exact, non-rounded value.
Can I convert decajoules back to kilocalories?
Yes. Divide the decajoule value by 418.4, or multiply it by 0.002390057361, to get kilocalories.
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About converting kilocalories to decajoules
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels. A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Use this calculator to move between kilocalories and decajoules accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.