Online calculator to convert joules to British Thermal Units (J to BTU) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Energy units.
Conversion Calculator
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Convert J to BTU
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Conversion Definitions
The following is a list of definitions relating to conversions between joules and BTU.
What is a joule (J)?
A joule is a unit of energy in the International System of Units (SI). The symbol for joule is J. There are 1,055.05585262 joules in a BTU.
What is a British Thermal Unit (BTU)?
A British Thermal Unit is a unit of energy in the Imperial System. The symbol for British Thermal Unit is BTU or Btu. There are 0.00094782 BTU in a joule. A BTU is measured as the quantity of heat required to raise the temperature of 1 pound of water by 1°F.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from J to BTU is:
BTU = J ÷ 1,055.05585262
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from joules to British Thermal Units (J to BTU).
Joule to BTU Conversion Example
Task: Convert 750 joules to BTUs (show work) Formula: J ÷ 1,055.05585262 = BTU Calculations: 750 J ÷ 1,055.05585262 = 0.71086284 BTU Result: 750 J is equal to 0.71086284 BTU
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from joules to BTUs.
Joules to BTUs Conversion Chart
| joules (J) | British Thermal Units (BTU) |
|---|---|
| 1 J | 0.00094782 BTU |
| 2 J | 0.00189563 BTU |
| 3 J | 0.00284345 BTU |
| 4 J | 0.00379127 BTU |
| 5 J | 0.00473909 BTU |
| 6 J | 0.0056869 BTU |
| 7 J | 0.00663472 BTU |
| 8 J | 0.00758254 BTU |
| 9 J | 0.00853035 BTU |
| 10 J | 0.00947817 BTU |
| 20 J | 0.01895634 BTU |
| 30 J | 0.02843451 BTU |
| 40 J | 0.03791268 BTU |
| 50 J | 0.04739086 BTU |
| 75 J | 0.07108628 BTU |
| 100 J | 0.09478171 BTU |
| 250 J | 0.23695428 BTU |
| 500 J | 0.47390856 BTU |
| 750 J | 0.71086284 BTU |
| 1,000 J | 0.94781712 BTU |
| 2,500 J | 2.3695428 BTU |
| 5,000 J | 4.7390856 BTU |
| 7,500 J | 7.1086284 BTU |
| 10,000 J | 9.4781712 BTU |
| 25,000 J | 23.69542801 BTU |
| 50,000 J | 47.39085602 BTU |
| 75,000 J | 71.08628402 BTU |
| 100,000 J | 94.78171203 BTU |
| 250,000 J | 236.95428008 BTU |
Related Units
This table provides a summary of the Energy units within their respective measurement systems.
| Unit | Symbol | Measurement System |
|---|---|---|
| calories (thermochemical) | cal | International System of Units (SI) |
| kilocalories | kcal | International System of Units (SI) |
| British Thermal Unit | BTU or Btu | Imperial System |
| joules | J | International System of Units (SI) |
| kilojoules | kJ | International System of Units (SI) |
| megajoules | MJ | International System of Units (SI) |
| gigajoules | GJ | International System of Units (SI) |
| terajoules | TJ | International System of Units (SI) |
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