Energy
Convert joule (J) to British thermal unit (BTU). Energy is the capacity to do work or transfer heat — the currency of every heat and material balance.
1 J = 0.0009478171 BTU
To convert joule to British thermal unit, multiply the J value by 0.0009478171. To go the other way, divide by 0.0009478171 (or multiply by 1055.056).
| J | BTU |
|---|---|
| 1 | 0.0009478171 |
| 2 | 0.001895634 |
| 5 | 0.004739086 |
| 10 | 0.009478171 |
| 25 | 0.02369543 |
| 50 | 0.04739086 |
| 100 | 0.09478171 |
| 250 | 0.2369543 |
| 500 | 0.4739086 |
| 1000 | 0.9478171 |
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 3600000 J is 3412.142 BTU.
Multiply the value in J by 0.0009478171 to get BTU. For example, 10 J = 0.009478171 BTU.
1 J equals 0.0009478171 BTU.
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.