⚡ Energy
BTU to joules Converter
Convert BTU to joules instantly with a reference conversion table.
Quick answer: To convert BTU to joules, multiply by 1055.06. For example, 1 BTU = 1055.06 joules. Use the calculator below for any value.
BTU to joules
→
Common conversions
| BTU | joules |
|---|
Formula:
How to convert BTU to joules
1
Enter your value
Type the number of btu you want to convert into the left box. The result in joules appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — joules to BTU. Your current value carries across so you don't have to re-enter anything.
3
About BTU and joules
BTU and joules are common energy measurements.
📊 Common conversions at a glance
| BTU | joules |
|---|---|
| 0.001 | 1.055 |
| 0.01 | 10.55 |
| 0.1 | 105.5 |
| 0.5 | 527.5 |
| 1 | 1055 |
| 5 | 5275 |
Reviewed for 2026. BTU ↔ joules conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.
Frequently asked questions
How do I convert BTU to joules?
To convert BTU to joules, multiply by 1055.06. Or use the calculator above for instant results.
How many joules are in 1 BTU?
1 BTU equals 1055.06 joules.
Is the BTU to joules converter free?
Yes, the BTU to joules converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.