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Kilocalorie to Kilojoule

Convert Kilocalorie (KCal) to Kilojoule (KJ)

Please provide values below to convert Kilocalorie (KCal) to Kilojoule (KJ).
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      Updated on September 1, 2025

      About Kilocalorie (KCal) to Kilojoule (KJ) Conversion Calculator

      Written By
      author
      Nadiba Rahman
      Reviewed by
      author
      Mrinmoy Roy
      Share This Post
      You can use our Kilocalorie (KCal) to Kilojoule (KJ) 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 Kilojoule (KJ) 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 Kilojoule (KJ) converter.

      Relation Between Kilocalorie (KCal) and Kilojoule (KJ)

      Let me explain to you about the relation between Kilocalorie KCal and Kilojoule (KJ) 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 Kilojoule (KJ)?

      Kilocalorie (KCal) is another unit of energy measurement that is used in Physics, Chemistry. A kilojoule is a unit of energy equal to 1000 joules.. Kilocalories are commonly used to measure the energy content of food and in nutrition..

      How to Convert Kilojoule (KJ)?

      The conversion between Kilocalorie (KCal) and Kilojoule (KJ) follows a simple formula:

      Kilocalorie = Kilocalorie × 4.1868

      Where, 4.1868 is the value that allows you to convert between Kilocalorie (KCal) and Kilojoule (KJ).

      So,

      1 Kilojoule = 4.1868 Kilocalorie

      And, 1 Kilocalorie = 1/4.1868 Kilojoule
      alt

      Examples of Converting Kilocalorie (KCal) to Kilojoule (KJ)

      To convert any value from Kilocalorie (KCal) to Kilojoule (KJ), simply multiply the amount of Kilocalorie (KCal) by the conversion factor:

      1 Kilojoule = 4.1868 Kilocalorie

      For example, if you want to convert 5 Kilocalorie into Kilojoule and the conversion factor is 4.1868, then:

      5 Kilocalorie = 5 x 4.1868 Kilojoule

      Kilocalorie (KCal) to Kilojoule (KJ) Conversion Chart

      Here’s a quick reference chart for common conversions between Kilocalorie (KCal) and Kilojoule (KJ)
      Kilocalorie (KCal)Kilojoule (KJ)
      5 Kilocalorie (KCal)20.933999999999997 Kilojoule (KJ)
      10 Kilocalorie (KCal)41.867999999999995 Kilojoule (KJ)
      15 Kilocalorie (KCal)62.802 Kilojoule (KJ)
      20 Kilocalorie (KCal)83.73599999999999 Kilojoule (KJ)
      25 Kilocalorie (KCal)104.67 Kilojoule (KJ)
      30 Kilocalorie (KCal)125.604 Kilojoule (KJ)
      35 Kilocalorie (KCal)146.53799999999998 Kilojoule (KJ)
      40 Kilocalorie (KCal)167.47199999999998 Kilojoule (KJ)
      45 Kilocalorie (KCal)188.406 Kilojoule (KJ)
      50 Kilocalorie (KCal)209.34 Kilojoule (KJ)
      You can use the above chart for quick and easy reference.

      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)4186.800000 Joule (J)
      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 Kilojoule (KJ) Conversion Calculator

      Our Kilocalorie KCal to Kilojoule (KJ) 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:
      1. Standard format (e.g. 12.345245)
      2. Scientific notation (e.g. 1.23452e+1)
      3. Engineering format (e.g. 1.23452 × 10^1)

      Integrated Scientific Calculator

      We know you need to switch between a unit converter and a general calculator back and forth. To minimize your hassle, our Kilocalorie KCal to Kilojoule (KJ) converter comes up with an integrated scientific calculator.

      Conversion History Tracking

      You can always review your past energy conversions and go to them whenever you like. It stores your most recent 10 unit conversions.

      Thousand Separators Toggle

      Our Kilocalorie KCal to Kilojoule (KJ) converter improves the output readability by toggling the thousand separators “On”. It’s useful when you work with large numbers.

      Conclusion

      Now, you understand how to convert Kilocalorie KCal to Kilojoule (KJ) manually. But you can bypass the manual calculation using our energy conversion calculator. This allows you to get faster and accurate results in Kilojoule (KJ), which you can use in Nutrition, Energy related measurements. With the help of our integrated scientific calculator, calculation history tracking, and precision control, our Kilocalorie KCal to Kilojoule (KJ) converter is your swiss army knife for daily calculations.
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