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 Kilocalories
Convert Decijoule (dJ) to Kilocalorie (kcal) instantly with an exact formula, conversion table, and FAQ.
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Convert decijoules (dJ) 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 = dJ × 0.00002390057361
Results update instantly for Decijoules to Kilocalories conversions.
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Formula
kcal = dJ × 0.00002390057361
dJ = kcal × 41840
Conversion table
| 1 dJ | 0.000024 kcal |
| 5 dJ | 0.000120 kcal |
| 10 dJ | 0.000239 kcal |
| 20 dJ | 0.000478 kcal |
| 50 dJ | 0.001195 kcal |
| 100 dJ | 0.002390 kcal |
| 500 dJ | 0.011950 kcal |
| 1000 dJ | 0.023901 kcal |
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How the formula works
Both decijoule and kilocalorie measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in decijoules by 0.00002390057361 to get kilocalories. To reverse the conversion, multiply a kilocalorie value by 41840 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 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 decijoules to kilocalories?
Multiply the decijoule value by 0.00002390057361 to get the equivalent in kilocalories. For example, 5 dJ × 0.00002390057361 = 0.000120 kcal.
Is this conversion exact?
Yes. Both units are defined against the SI base unit for this dimension, so the factor 0.00002390057361 is an exact, non-rounded value.
Can I convert kilocalories back to decijoules?
Yes. Divide the kilocalorie value by 0.00002390057361, or multiply it by 41840, to get decijoules.
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About converting decijoules to kilocalories
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 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 decijoules 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.