Convert British Thermal Unit (BTU) to Joule (J)
Please provide values below to convert British Thermal Unit (BTU) to Joule (J).Energy Converter
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Updated on September 1, 2025
You can use our British Thermal Unit (BTU) 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 British Thermal Unit (BTU) to Joule (J) is crucial in Heating, Energy related measurements. You can avoid the risk of manual calculation errors and save valuable time using our British Thermal Unit (BTU) to Joule (J) converter.About British Thermal Unit (BTU) to Joule (J) Conversion Calculator
Written By
Nadiba Rahman
Reviewed by
Mrinmoy Roy
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Relation Between British Thermal Unit (BTU) and Joule (J)
Let me explain to you about the relation between British Thermal Unit BTU and Joule (J) first before moving to the conversion process. Because it’s essential to grasp what these units represent.What is British Thermal Unit (BTU)?
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. British Thermal Unit (BTU) is a unit of energy measurement which is commonly used in Heating, Energy. BTUs are commonly used in the United States and other countries that use the imperial system to measure the energy content of fuels, the efficiency of heating and cooling systems, and the energy consumption of appliances..What is Joule (J)?
British Thermal Unit (BTU) 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 . BTUs are commonly used in the United States and other countries that use the imperial system to measure the energy content of fuels, the efficiency of heating and cooling systems, and the energy consumption of appliances..How to Convert Joule (J)?
The conversion between British Thermal Unit (BTU) and Joule (J) follows a simple formula:British Thermal Unit = British Thermal Unit × 1055.05585262
Where, 1055.05585262 is the value that allows you to convert between British Thermal Unit (BTU) and Joule (J).
So,
1 Joule = 1055.05585262 British Thermal Unit
And, 1 British Thermal Unit = 1/1055.05585262 Joule

Examples of Converting British Thermal Unit (BTU) to Joule (J)
To convert any value from British Thermal Unit (BTU) to Joule (J), simply multiply the amount of British Thermal Unit (BTU) by the conversion factor:1 Joule = 1055.05585262 British Thermal Unit
For example, if you want to convert 5 British Thermal Unit into Joule and the conversion factor is 1055.05585262, then:
5 British Thermal Unit = 5 x 1055.05585262 Joule
British Thermal Unit (BTU) to Joule (J) Conversion Chart
Here’s a quick reference chart for common conversions between British Thermal Unit (BTU) and Joule (J)| British Thermal Unit (BTU) | Joule (J) |
|---|---|
| 10 British Thermal Unit (BTU) | 10550.5585262 Joule (J) |
| 20 British Thermal Unit (BTU) | 21101.1170524 Joule (J) |
| 30 British Thermal Unit (BTU) | 31651.6755786 Joule (J) |
| 40 British Thermal Unit (BTU) | 42202.2341048 Joule (J) |
| 50 British Thermal Unit (BTU) | 52752.792631 Joule (J) |
| 60 British Thermal Unit (BTU) | 63303.3511572 Joule (J) |
| 70 British Thermal Unit (BTU) | 73853.9096834 Joule (J) |
| 80 British Thermal Unit (BTU) | 84404.4682096 Joule (J) |
| 90 British Thermal Unit (BTU) | 94955.0267358 Joule (J) |
| 100 British Thermal Unit (BTU) | 105505.585262 Joule (J) |
How 1 British Thermal Unit (BTU) Converts to Other energy Units
See the relation between British Thermal Unit (BTU) and other energy related measurement units:| 1 British Thermal Unit(BTU) | 252.000000 Calorie (cal) |
| 1 British Thermal Unit(BTU) | 105505585.262000 Erg (erg) |
| 1 British Thermal Unit(BTU) | 6.5815e+21 Electronvolt (ev) |
| 1 British Thermal Unit(BTU) | 0.000000 Exajoule (EJ) |
| 1 British Thermal Unit(BTU) | 778.000000 Foot-pound (ft lbs) |
| 1 British Thermal Unit(BTU) | 0.000000 Gigajoule (GJ) |
| 1 British Thermal Unit(BTU) | 0.000000 Gigawatt-hour (GWh) |
| 1 British Thermal Unit(BTU) | 0.252000 Kilocalorie (KCal) |
| 1 British Thermal Unit(BTU) | 1.055056 Kilojoule (KJ) |
| 1 British Thermal Unit(BTU) | 0.001055 Megajoule (MJ) |
| 1 British Thermal Unit(BTU) | 0.000000 Megawatt-hour (MWh) |
| 1 British Thermal Unit(BTU) | 0.001000 Natural Gas Low Heating Value (NG LHV) |
| 1 British Thermal Unit(BTU) | 1055.055853 Newton-meter (Nm) |
| 1 British Thermal Unit(BTU) | 0.000010 Therms |
| 1 British Thermal Unit(BTU) | 0.293071 Watt-hour (Wh) |
| 1 British Thermal Unit(BTU) | 0.000293 Kilowatt-hour (kwh) |
| 1 British Thermal Unit(BTU) | 1055.055853 Watt-second (Ws) |
Features of Our British Thermal Unit (BTU) to Joule (J) Conversion Calculator
Our British Thermal Unit BTU 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)

