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Convert Calorie (cal) to Watt-hour (Wh)

Please provide values below to convert Calorie (cal) to Watt-hour (Wh).
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      Updated on September 1, 2025

      About Calorie (cal) to Watt-hour (Wh) Conversion Calculator

      Written By
      author
      Nadiba Rahman
      Reviewed by
      author
      Mrinmoy Roy
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      You can use our Calorie (cal) to Watt-hour (Wh) 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 Calorie (cal) to Watt-hour (Wh) is crucial in Nutrition, Energy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our Calorie (cal) to Watt-hour (Wh) converter.

      Relation Between Calorie (cal) and Watt-hour (Wh)

      Let me explain to you about the relation between Calorie cal and Watt-hour (Wh) first before moving to the conversion process. Because it’s essential to grasp what these units represent.

      What is Calorie (cal)?

      A calorie is the amount of heat energy required to raise the temperature of one gram of pure water by one degree Celsius. Calorie (cal) is a unit of energy measurement which is commonly used in Nutrition, Energy. Calories are commonly used to measure the energy content of food. The term "calorie" is often used interchangeably with "kilocalorie" in the context of food and nutrition..

      What is Watt-hour (Wh)?

      Calorie (cal) is another unit of energy measurement that is used in Electricity, Power Measurement. A watt-hour is a unit of energy equal to the energy produced by a power of one watt operating for one hour.. Calories are commonly used to measure the energy content of food. The term "calorie" is often used interchangeably with "kilocalorie" in the context of food and nutrition..

      How to Convert Watt-hour (Wh)?

      The conversion between Calorie (cal) and Watt-hour (Wh) follows a simple formula:

      Calorie = Calorie × 0.001163

      Where, 0.001163 is the value that allows you to convert between Calorie (cal) and Watt-hour (Wh).

      So,

      1 Watt-hour = 0.001163 Calorie

      And, 1 Calorie = 1/0.001163 Watt-hour
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      Examples of Converting Calorie (cal) to Watt-hour (Wh)

      To convert any value from Calorie (cal) to Watt-hour (Wh), simply multiply the amount of Calorie (cal) by the conversion factor:

      1 Watt-hour = 0.001163 Calorie

      For example, if you want to convert 5 Calorie into Watt-hour and the conversion factor is 0.001163, then:

      5 Calorie = 5 x 0.001163 Watt-hour

      Calorie (cal) to Watt-hour (Wh) Conversion Chart

      Here’s a quick reference chart for common conversions between Calorie (cal) and Watt-hour (Wh)
      Calorie (cal)Watt-hour (Wh)
      10 Calorie (cal)0.01163 Watt-hour (Wh)
      20 Calorie (cal)0.02326 Watt-hour (Wh)
      30 Calorie (cal)0.03489 Watt-hour (Wh)
      40 Calorie (cal)0.04652 Watt-hour (Wh)
      50 Calorie (cal)0.05815 Watt-hour (Wh)
      60 Calorie (cal)0.06978 Watt-hour (Wh)
      70 Calorie (cal)0.08141 Watt-hour (Wh)
      80 Calorie (cal)0.09304 Watt-hour (Wh)
      90 Calorie (cal)0.10467 Watt-hour (Wh)
      100 Calorie (cal)0.1163 Watt-hour (Wh)
      You can use the above chart for quick and easy reference.

      How 1 Calorie (cal) Converts to Other energy Units

      See the relation between Calorie (cal) and other energy related measurement units:
      1 Calorie(cal)0.003968 British Thermal Unit (BTU)
      1 Calorie(cal)41868000.000000 Erg (erg)
      1 Calorie(cal)26131400000000000000.000000 Electronvolt (ev)
      1 Calorie(cal)0.000000 Exajoule (EJ)
      1 Calorie(cal)3.087000 Foot-pound (ft lbs)
      1 Calorie(cal)0.000000 Gigajoule (GJ)
      1 Calorie(cal)0.000000 Gigawatt-hour (GWh)
      1 Calorie(cal)4.186800 Joule (J)
      1 Calorie(cal)0.001000 Kilocalorie (KCal)
      1 Calorie(cal)0.004187 Kilojoule (KJ)
      1 Calorie(cal)0.000004 Megajoule (MJ)
      1 Calorie(cal)0.000000 Megawatt-hour (MWh)
      1 Calorie(cal)0.000004 Natural Gas Low Heating Value (NG LHV)
      1 Calorie(cal)4.186800 Newton-meter (Nm)
      1 Calorie(cal)0.000000 Therms
      1 Calorie(cal)0.000001 Kilowatt-hour (kwh)
      1 Calorie(cal)4.186800 Watt-second (Ws)

      Features of Our Calorie (cal) to Watt-hour (Wh) Conversion Calculator

      Our Calorie cal to Watt-hour (Wh) 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 Calorie cal to Watt-hour (Wh) 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 Calorie cal to Watt-hour (Wh) 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 Calorie cal to Watt-hour (Wh) manually. But you can bypass the manual calculation using our energy conversion calculator. This allows you to get faster and accurate results in Watt-hour (Wh), which you can use in Nutrition, Energy related measurements. With the help of our integrated scientific calculator, calculation history tracking, and precision control, our Calorie cal to Watt-hour (Wh) converter is your swiss army knife for daily calculations.
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      Frequently Asked Questions [FAQs]