Convert british thermal units to joules
1 BTU = 1055.05585262 J — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1055.055 852 62J
Exact decimal: 1055.05585262
As a fraction: 52752792631/50000000
1 BTU = 1055.05585262 J
How to convert british thermal units to joules
Multiply the number of british thermal units by 1055.05585262 to get joules.
The exact factor is 1055.05585262 — as a fraction, 52752792631/50000000.
British thermal unit: International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.
British thermal unit to Joule conversion table
| British thermal units (BTU) | Joules (J) |
|---|---|
| 1 BTU | 1055.0559 |
| 2 BTU | 2110.1117 |
| 3 BTU | 3165.1676 |
| 5 BTU | 5275.2793 |
| 10 BTU | 10 550.559 |
| 20 BTU | 21 101.117 |
| 25 BTU | 26 376.396 |
| 50 BTU | 52 752.793 |
| 100 BTU | 105 505.59 |
| 250 BTU | 263 763.96 |
| 500 BTU | 527 527.93 |
| 1000 BTU | 1 055 055.9 |
Joule to British thermal unit conversion table
| Joules (J) | British thermal units (BTU) |
|---|---|
| 1 J | 0.000 947 817 12 |
| 2 J | 0.001 895 634 2 |
| 3 J | 0.002 843 451 4 |
| 5 J | 0.004 739 085 6 |
| 10 J | 0.009 478 171 2 |
| 20 J | 0.018 956 342 |
| 25 J | 0.023 695 428 |
| 50 J | 0.047 390 856 |
| 100 J | 0.094 781 712 |
| 250 J | 0.236 954 28 |
| 500 J | 0.473 908 56 |
| 1000 J | 0.947 817 12 |
Frequently asked
How many joules are in a british thermal unit?
One british thermal unit equals 1055.055853 joules (BTU → J). That figure is exact, not rounded.
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 J in british thermal units?
One joule is 0.0009478171203 british thermal units.
What is 10 BTU in J?
10 BTU = 10 550.559 J.
What exactly is a british thermal unit?
International Table BTU, exactly 1055.055 852 62 J. HVAC capacity is quoted in BTU/h.