Convert Kilocalorie (KCal) to Joule (J)
Please provide values below to convert Kilocalorie (KCal) to Joule (J).Energy Converter
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Updated on September 1, 2025
You can use our Kilocalorie (KCal) to Joule (J) 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 Kilocalorie (KCal) to Joule (J) is crucial in Nutrition, Energy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our Kilocalorie (KCal) to Joule (J) converter.About Kilocalorie (KCal) to Joule (J) Conversion Calculator
Written By
Nadiba Rahman
Reviewed by
Mrinmoy Roy
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Relation Between Kilocalorie (KCal) and Joule (J)
Let me explain to you about the relation between Kilocalorie KCal and Joule (J) first before moving to the conversion process. Because it’s essential to grasp what these units represent.What is Kilocalorie (KCal)?
A kilocalorie is equal to 1000 calories. Kilocalorie (KCal) is a unit of energy measurement which is commonly used in Nutrition, Energy. Kilocalories are commonly used to measure the energy content of food and in nutrition..What is Joule (J)?
Kilocalorie (KCal) is another unit of energy measurement that is used in Physics, Energy. 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 . Kilocalories are commonly used to measure the energy content of food and in nutrition..How to Convert Joule (J)?
The conversion between Kilocalorie (KCal) and Joule (J) follows a simple formula:Kilocalorie = Kilocalorie × 4186.8
Where, 4186.8 is the value that allows you to convert between Kilocalorie (KCal) and Joule (J).
So,
1 Joule = 4186.8 Kilocalorie
And, 1 Kilocalorie = 1/4186.8 Joule

Examples of Converting Kilocalorie (KCal) to Joule (J)
To convert any value from Kilocalorie (KCal) to Joule (J), simply multiply the amount of Kilocalorie (KCal) by the conversion factor:1 Joule = 4186.8 Kilocalorie
For example, if you want to convert 5 Kilocalorie into Joule and the conversion factor is 4186.8, then:
5 Kilocalorie = 5 x 4186.8 Joule
Kilocalorie (KCal) to Joule (J) Conversion Chart
Here’s a quick reference chart for common conversions between Kilocalorie (KCal) and Joule (J)| Kilocalorie (KCal) | Joule (J) |
|---|---|
| 5 Kilocalorie (KCal) | 20934 Joule (J) |
| 10 Kilocalorie (KCal) | 41868 Joule (J) |
| 15 Kilocalorie (KCal) | 62802 Joule (J) |
| 20 Kilocalorie (KCal) | 83736 Joule (J) |
| 25 Kilocalorie (KCal) | 104670 Joule (J) |
| 30 Kilocalorie (KCal) | 125604 Joule (J) |
| 35 Kilocalorie (KCal) | 146538 Joule (J) |
| 40 Kilocalorie (KCal) | 167472 Joule (J) |
| 45 Kilocalorie (KCal) | 188406 Joule (J) |
| 50 Kilocalorie (KCal) | 209340 Joule (J) |
How 1 Kilocalorie (KCal) Converts to Other energy Units
See the relation between Kilocalorie (KCal) and other energy related measurement units:| 1 Kilocalorie(KCal) | 3.968321 British Thermal Unit (BTU) |
| 1 Kilocalorie(KCal) | 1000.000000 Calorie (cal) |
| 1 Kilocalorie(KCal) | 41868000000.000000 Erg (erg) |
| 1 Kilocalorie(KCal) | 2.61314e+22 Electronvolt (ev) |
| 1 Kilocalorie(KCal) | 0.000000 Exajoule (EJ) |
| 1 Kilocalorie(KCal) | 3087.000000 Foot-pound (ft lbs) |
| 1 Kilocalorie(KCal) | 0.000000 Gigajoule (GJ) |
| 1 Kilocalorie(KCal) | 0.000000 Gigawatt-hour (GWh) |
| 1 Kilocalorie(KCal) | 4.186800 Kilojoule (KJ) |
| 1 Kilocalorie(KCal) | 0.004187 Megajoule (MJ) |
| 1 Kilocalorie(KCal) | 0.000001 Megawatt-hour (MWh) |
| 1 Kilocalorie(KCal) | 0.003968 Natural Gas Low Heating Value (NG LHV) |
| 1 Kilocalorie(KCal) | 4186.800000 Newton-meter (Nm) |
| 1 Kilocalorie(KCal) | 0.000004 Therms |
| 1 Kilocalorie(KCal) | 1.163000 Watt-hour (Wh) |
| 1 Kilocalorie(KCal) | 0.001162 Kilowatt-hour (kwh) |
| 1 Kilocalorie(KCal) | 4186.800000 Watt-second (Ws) |
Features of Our Kilocalorie (KCal) to Joule (J) Conversion Calculator
Our Kilocalorie KCal to Joule (J) 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)

