Energy
Convert British thermal unit (BTU) to joule (J). Energy is the capacity to do work or transfer heat — the currency of every heat and material balance.
1 BTU = 1055.056 J
To convert British thermal unit to joule, multiply the BTU value by 1055.056. To go the other way, divide by 1055.056 (or multiply by 0.0009478171).
| BTU | J |
|---|---|
| 1 | 1055.056 |
| 2 | 2110.112 |
| 5 | 5275.279 |
| 10 | 10550.56 |
| 25 | 26376.4 |
| 50 | 52752.79 |
| 100 | 105505.6 |
| 250 | 263764 |
| 500 | 527527.9 |
| 1000 | 1055056 |
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.
A calorie, a BTU, and a joule are all energy — keep the conversion factors handy when a spec mixes them.
Worked example. A energy of 3412.142 BTU is 3600000 J.
Multiply the value in BTU by 1055.056 to get J. For example, 10 BTU = 10550.56 J.
1 BTU equals 1055.056 J.
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.