British Thermal Unit to Joule
1 BTU = 1,055.06 J
How to convert british thermal unit to joule
Enter the value in british thermal unit (BTU) above and the equivalent in joule (J) updates as you type. This conversion comes up when understanding electricity bills (kWh) versus heater labels (BTU).
Typical situations: comparing food energy: calories vs kilojoules on imported packaging; sizing power banks and EV batteries (Wh, kWh).
You can also convert in the other direction: Joule to British Thermal Unit
British Thermal Unit to Joule conversion table
| British Thermal Unit (BTU) | Joule (J) |
|---|---|
| 1 | 1,055.06 |
| 2 | 2,110.12 |
| 5 | 5,275.3 |
| 10 | 10,550.6 |
| 25 | 26,376.5 |
| 50 | 52753 |
| 100 | 105506 |
Watch out for
- Calorie (food) vs calorie (physics): food labels mean kilocalories, a factor of 1,000
- Power (kW) vs energy (kWh): a 5 kW heater running 2 hours uses 10 kWh
Frequently asked questions
How many joules is 1 british thermal unit?
1 british thermal unit = 1,055.06 joules.
What is the formula to convert british thermal unit to joules?
The formula is: J = BTU × 1,055.06.
What is 10 british thermal units in joules?
10 british thermal units = 10,550.6 joules.