Decijoule is 0.1 joule units.
Decijoules to Kilocalories Converter — dJ to kcal
Convert Decijoule (dJ) to Kilocalorie (kcal) using the exact conversion factor (1 decijoule = 0.0000239006 kilocalorie). See the formula, worked examples, and conversion table.
Decijoules to Kilocalories converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
A kilocalorie is 1,000 calories.
Result = input x 0.1 / 4184.
Energy units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Decijoules to Kilocalories
Decijoule and Kilocalorie both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Decijoule is 0.1 joule units, and a kilocalorie is 1,000 calories.
Formula
kilocalories = decijoules × 0.0000239005736138
This factor comes from each unit's defined relationship to the category's base unit: 1 decijoule equals 0.1 base units, and 1 kilocalorie equals 4184 base units, so dividing one by the other gives the direct decijoule-to-kilocalorie factor of 0.0000239005736138.
Simple example
1 dJ × 0.00002390057361 = 0.0000239006 kcal
1 decijoule = 0.0000239006 kilocalories.
Real-world example
100 dJ × 0.00002390057361 = 0.0023900574 kcal
100 decijoules = 0.0023900574 kilocalories.
Conversion table
| Decijoule (dJ) | Kilocalorie (kcal) |
|---|---|
| 1 dJ | 0.0000239006 kcal |
| 10 dJ | 0.0002390057 kcal |
| 50 dJ | 0.0011950287 kcal |
| 100 dJ | 0.0023900574 kcal |
| 500 dJ | 0.0119502868 kcal |
| 1,000 dJ | 0.0239005736 kcal |
Reverse conversion: Kilocalorie to Decijoule
0.0000239006 kcal × 41840 = 1.000001104 dJ
0.0000239006 kilocalories = 1.000001104 decijoules.
decijoules = kilocalories × 41840
For a page dedicated to this direction, see Kilocalorie to Decijoule.
Understanding the Decijoule (dJ)
Decijoule is 0.1 joule units.
Understanding the Kilocalorie (kcal)
A kilocalorie is 1,000 calories.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many kilocalories are in 1 decijoule?
1 decijoule equals 0.0000239006 kilocalories, using the exact defined conversion factor rather than an estimate.
How do I convert decijoule to kilocalorie?
Multiply the decijoule value by 0.00002390057361. The converter above does this instantly to whatever precision you set.
How do I convert kilocalorie back to decijoule?
Use the reverse factor: 1 kilocalorie equals 41,840 decijoules. You can also use the swap control in the converter above to flip the direction instantly.
What is a decijoule?
Decijoule (dJ) is a unit of engineering.
What is a kilocalorie?
Kilocalorie (kcal) is a unit of engineering.
Is the decijoule to kilocalorie conversion exact?
Yes. Both decijoule and kilocalorie are defined by fixed standards rather than physical artifacts, so the factor of 0.00002390057361 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.