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Joule to British Thermal Unit

Convert Joule (J) to British Thermal Unit (BTU)

Please provide values below to convert Joule (J) to British Thermal Unit (BTU).
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      Updated on September 1, 2025

      About Joule (J) to British Thermal Unit (BTU) Conversion Calculator

      Written By
      author
      Nadiba Rahman
      Reviewed by
      author
      Mrinmoy Roy
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      You can use our Joule (J) to British Thermal Unit (BTU) 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 British Thermal Unit (BTU) 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 British Thermal Unit (BTU) converter.

      Relation Between Joule (J) and British Thermal Unit (BTU)

      Let me explain to you about the relation between Joule J and British Thermal Unit (BTU) 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 British Thermal Unit (BTU)?

      Joule (J) is another unit of energy measurement that is used in Heating, Energy. A British Thermal Unit is the amount of heat energy required to raise the temperature of one pound of liquid water by one degree Fahrenheit.. The joule is the fundamental unit of energy in many scientific and engineering applications..

      How to Convert British Thermal Unit (BTU)?

      The conversion between Joule (J) and British Thermal Unit (BTU) follows a simple formula:

      Joule = Joule × 0.000947817

      Where, 0.000947817 is the value that allows you to convert between Joule (J) and British Thermal Unit (BTU).

      So,

      1 British Thermal Unit = 0.000947817 Joule

      And, 1 Joule = 1/0.000947817 British Thermal Unit
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      Examples of Converting Joule (J) to British Thermal Unit (BTU)

      To convert any value from Joule (J) to British Thermal Unit (BTU), simply multiply the amount of Joule (J) by the conversion factor:

      1 British Thermal Unit = 0.000947817 Joule

      For example, if you want to convert 5 Joule into British Thermal Unit and the conversion factor is 0.000947817, then:

      5 Joule = 5 x 0.000947817 British Thermal Unit

      Joule (J) to British Thermal Unit (BTU) Conversion Chart

      Here’s a quick reference chart for common conversions between Joule (J) and British Thermal Unit (BTU)
      Joule (J)British Thermal Unit (BTU)
      5 Joule (J)0.004739085 British Thermal Unit (BTU)
      10 Joule (J)0.00947817 British Thermal Unit (BTU)
      15 Joule (J)0.014217255 British Thermal Unit (BTU)
      20 Joule (J)0.01895634 British Thermal Unit (BTU)
      25 Joule (J)0.023695425 British Thermal Unit (BTU)
      30 Joule (J)0.02843451 British Thermal Unit (BTU)
      35 Joule (J)0.033173595 British Thermal Unit (BTU)
      40 Joule (J)0.03791268 British Thermal Unit (BTU)
      45 Joule (J)0.042651765 British Thermal Unit (BTU)
      50 Joule (J)0.04739085 British Thermal Unit (BTU)
      You can use the above chart for quick and easy reference.

      How 1 Joule (J) Converts to Other energy Units

      See the relation between Joule (J) and other energy related measurement units:
      1 Joule(J)0.239006 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)0.000239 Kilocalorie (KCal)
      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 British Thermal Unit (BTU) Conversion Calculator

      Our Joule J to British Thermal Unit (BTU) 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 Joule J to British Thermal Unit (BTU) 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 Joule J to British Thermal Unit (BTU) 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 Joule J to British Thermal Unit (BTU) manually. But you can bypass the manual calculation using our energy conversion calculator. This allows you to get faster and accurate results in British Thermal Unit (BTU), which you can use in Physics, Energy related measurements. With the help of our integrated scientific calculator, calculation history tracking, and precision control, our Joule J to British Thermal Unit (BTU) converter is your swiss army knife for daily calculations.
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