Convert Joule (J) to Kilocalorie (KCal)
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Updated on September 1, 2025
You can use our Joule (J) to Kilocalorie (KCal) conversion calculator as a reliable and efficient tool to simplify energy conversions. It is designed for professionals, students, and anyone who needs a quick and accurate result. Conversion of Joule (J) to Kilocalorie (KCal) is crucial in Physics, Energy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our Joule (J) to Kilocalorie (KCal) converter.About Joule (J) to Kilocalorie (KCal) Conversion Calculator
Written By
Nadiba Rahman
Reviewed by
Mrinmoy Roy
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Relation Between Joule (J) and Kilocalorie (KCal)
Let me explain to you about the relation between Joule J and Kilocalorie (KCal) first before moving to the conversion process. Because it’s essential to grasp what these units represent.What is Joule (J)?
The joule is the SI unit of energy, defined as the amount of work done when a force of one newton is applied over a distance of one meter. 2 Joule (J) is a unit of energy measurement which is commonly used in Physics, Energy. The joule is the fundamental unit of energy in many scientific and engineering applications..What is Kilocalorie (KCal)?
Joule (J) is another unit of energy measurement that is used in Nutrition, Energy. A kilocalorie is equal to 1000 calories.. The joule is the fundamental unit of energy in many scientific and engineering applications..How to Convert Kilocalorie (KCal)?
The conversion between Joule (J) and Kilocalorie (KCal) follows a simple formula:Joule = Joule × 0.0002390057
Where, 0.0002390057 is the value that allows you to convert between Joule (J) and Kilocalorie (KCal).
So,
1 Kilocalorie = 0.0002390057 Joule
And, 1 Joule = 1/0.0002390057 Kilocalorie

Examples of Converting Joule (J) to Kilocalorie (KCal)
To convert any value from Joule (J) to Kilocalorie (KCal), simply multiply the amount of Joule (J) by the conversion factor:1 Kilocalorie = 0.0002390057 Joule
For example, if you want to convert 5 Joule into Kilocalorie and the conversion factor is 0.0002390057, then:
5 Joule = 5 x 0.0002390057 Kilocalorie
Joule (J) to Kilocalorie (KCal) Conversion Chart
Here’s a quick reference chart for common conversions between Joule (J) and Kilocalorie (KCal)| Joule (J) | Kilocalorie (KCal) |
|---|---|
| 5 Joule (J) | 0.0011950285 Kilocalorie (KCal) |
| 10 Joule (J) | 0.002390057 Kilocalorie (KCal) |
| 15 Joule (J) | 0.0035850855 Kilocalorie (KCal) |
| 20 Joule (J) | 0.004780114 Kilocalorie (KCal) |
| 25 Joule (J) | 0.0059751425 Kilocalorie (KCal) |
| 30 Joule (J) | 0.007170171 Kilocalorie (KCal) |
| 35 Joule (J) | 0.0083651995 Kilocalorie (KCal) |
| 40 Joule (J) | 0.009560228 Kilocalorie (KCal) |
| 45 Joule (J) | 0.0107552565 Kilocalorie (KCal) |
| 50 Joule (J) | 0.011950285 Kilocalorie (KCal) |
How 1 Joule (J) Converts to Other energy Units
See the relation between Joule (J) and other energy related measurement units:| 1 Joule(J) | 0.000948 British Thermal Unit (BTU) |
| 1 Joule(J) | 0.239006 Calorie (cal) |
| 1 Joule(J) | 10000000.000000 Erg (erg) |
| 1 Joule(J) | 6241509125883249664.000000 Electronvolt (ev) |
| 1 Joule(J) | 0.000000 Exajoule (EJ) |
| 1 Joule(J) | 0.737562 Foot-pound (ft lbs) |
| 1 Joule(J) | 0.000000 Gigajoule (GJ) |
| 1 Joule(J) | 0.000000 Gigawatt-hour (GWh) |
| 1 Joule(J) | 0.001000 Kilojoule (KJ) |
| 1 Joule(J) | 0.000001 Megajoule (MJ) |
| 1 Joule(J) | 0.000000 Megawatt-hour (MWh) |
| 1 Joule(J) | 0.000001 Natural Gas Low Heating Value (NG LHV) |
| 1 Joule(J) | 1.000000 Newton-meter (Nm) |
| 1 Joule(J) | 0.000000 Therms |
| 1 Joule(J) | 0.000278 Watt-hour (Wh) |
| 1 Joule(J) | 0.000000 Kilowatt-hour (kwh) |
| 1 Joule(J) | 1.000000 Watt-second (Ws) |
Features of Our Joule (J) to Kilocalorie (KCal) Conversion Calculator
Our Joule J to Kilocalorie (KCal) converter is more than just a basic converter. Here's what makes it stand out:Output Precision Control
You can control how precise your conversion results are. From settings, you can adjust decimal places from 0 to 12 places.Customizable Rounding Options
You can control the output rounding options based on your necessity. You can turn the rounding mode on or off, and select between Ceiling or Floor rounding to match your needs.Multiple Number Formats
Display your results the way you want:- Standard format (e.g. 12.345245)
- Scientific notation (e.g. 1.23452e+1)
- Engineering format (e.g. 1.23452 × 10^1)

