Convert btu to joules
1 british thermal unit equals 1,055.0559 joules. Enter a value below to convert instantly.
Multiply the number of british thermal units by 1055.05585262 to get joules. How this is calculated
Need the other direction? Convert joule to british thermal unit →
Formula
Multiply the number of british thermal units by 1055.05585262 to get joules.
Step by step
- Start with 1 BTU.
- Multiply by the conversion factor 1055.05585262.
- 1 × 1055.05585262 = 1,055.0559 J.
British Thermal Units to Joules conversion table
| British Thermal Units (BTU) | Joules (J) |
|---|---|
| 1 | 1,055.0559 |
| 2 | 2,110.1117 |
| 5 | 5,275.2793 |
| 10 | 10,550.559 |
| 20 | 21,101.117 |
| 50 | 52,752.793 |
| 100 | 105,505.59 |
| 500 | 527,527.93 |
| 1,000 | 1,055,055.9 |
Convert British Thermal Unit to other energy units
1 BTU expressed in every other energy unit on this site.
- Joule J 1,055.0559
- Kilojoule kJ 1.0550559
- Megajoule MJ 0.0010550559
- Gigajoule GJ 0.0000010550559
- Millijoule mJ 1,055,055.9
- Microjoule µJ 1,055,055,900
- Nanojoule nJ 1,055,055,900,000
- Attojoule aJ 1.0550559e+21
- Erg erg 10,550,559,000
- Calorie (thermochemical) cal 252.1644
- Kilocalorie kcal 0.2521644
- Calorie (IT) cal(IT) 251.99576
- Kilocalorie (IT) kcal(IT) 0.25199576
- Megacalorie Mcal 0.0002521644
- Watt-hour Wh 0.29307107
- Kilowatt-hour kWh 0.00029307107
- Megawatt-hour MWh 2.9307107e-7
- Gigawatt-hour GWh 2.9307107e-10
- Watt-second W·s 1,055.0559
- Kilowatt-second kW·s 1.0550559
- Horsepower-hour hp·h 0.00039301478
- British Thermal Unit BTU 1
- BTU (thermochemical) BTU(th) 1.0006692
- MBTU (thousand BTU) MBTU 0.001
- MMBTU (million BTU) MMBTU 0.000001
- Therm (US) thm (US) 0.000010002388
- Therm (EC) thm (EC) 0.0000099999607
- Ton-hour (refrigeration) ton·h 0.000083333335
- Foot-pound ft·lbf 778.16926
- Inch-pound in·lbf 9,338.0311
- Foot-poundal ft·pdl 25,036.856
- Kilogram-force Meter kgf·m 107.58576
- Gram-force Centimeter gf·cm 10,758,576
- Gram-force Meter gf·m 107,585.76
- Kilogram-force Centimeter kgf·cm 10,758.576
- Ounce-force Inch ozf·in 149,408.5
- Horsepower-hour (metric) PS·h 0.00039846576
- Electronvolt eV 6.5851407e+21
- Kiloelectronvolt keV 6.5851407e+18
- Megaelectronvolt MeV 6.5851407e+15
- Gigaelectronvolt GeV 6,585,140,700,000
- Hartree Eh 2.4199946e+20
- Rydberg Ry 4.8399891e+20
- Ton of TNT tTNT 2.521644e-7
- Kiloton of TNT ktTNT 2.521644e-10
- Megaton of TNT MtTNT 2.521644e-13
- Tonne of Oil Equivalent toe 2.5199576e-8
- Barrel of Oil Equivalent bboe 1.7245496e-7
- Gigaton of TNT GtTNT 2.521644e-16
- Fuel Oil Equivalent (kiloliter) FOE (kL) 2.6246719e-8
- Fuel Oil Equivalent (US barrel) FOE (bbl) 1.6528926e-7
About the british thermal unit
The british thermal unit (BTU) is a Imperial unit of energy.
About the joule
The joule (J) is a SI unit of energy.
Where this conversion is used
Converting british thermal units to joules comes up when nutrition labels, electricity bills, heating, and physics.
Related conversions
Frequently asked questions
How many joules are in a british thermal unit?
One british thermal unit equals 1,055.0559 joules.
How do you convert british thermal units to joules?
Multiply the number of british thermal units by 1055.05585262 to get joules.
What is 1 joule in british thermal units?
One joule equals 0.00094781712 british thermal units.
When would I convert british thermal units to joules?
This conversion is common when nutrition labels, electricity bills, heating, and physics.
Conversion factors are based on internationally agreed unit definitions. See our methodology and sources for details on how these values are verified.