A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix.
Decajoules to Kilocalories
Convert Decajoule (daJ) to Kilocalorie (kcal) instantly with an exact formula, conversion table, and FAQ.
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Convert decajoules (daJ) to kilocalories (kcal) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
kcal = daJ × 0.002390057361
Results update instantly for Decajoules to Kilocalories conversions.
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Formula
kcal = daJ × 0.002390057361
daJ = kcal × 418.4
Conversion table
| 1 daJ | 0.002390 kcal |
| 5 daJ | 0.011950 kcal |
| 10 daJ | 0.023901 kcal |
| 20 daJ | 0.047801 kcal |
| 50 daJ | 0.119503 kcal |
| 100 daJ | 0.239006 kcal |
| 500 daJ | 1.195029 kcal |
| 1000 daJ | 2.390057 kcal |
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How the formula works
Both decajoule and kilocalorie measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in decajoules by 0.002390057361 to get kilocalories. To reverse the conversion, multiply a kilocalorie value by 418.4 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 Kilocalorie (kcal)?
A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
How do I convert decajoules to kilocalories?
Multiply the decajoule value by 0.002390057361 to get the equivalent in kilocalories. For example, 5 daJ × 0.002390057361 = 0.011950 kcal.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.002390057361 is an exact, non-rounded value.
Can I convert kilocalories back to decajoules?
Yes. Divide the kilocalorie value by 0.002390057361, or multiply it by 418.4, to get decajoules.
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About converting decajoules to kilocalories
A decajoule (daJ) is a metric-prefixed unit of energy equal to 101 joules, using the SI deca prefix. A kilocalorie (kcal) equals 1,000 small calories and is the unit behind the food "Calorie" shown on nutrition labels.
Use this calculator to move between decajoules and kilocalories accurately for homework, engineering, billing, or everyday energy calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.