Energy
Convert British thermal unit (BTU) to kilojoule (kJ). Energy is the capacity to do work or transfer heat — the currency of every heat and material balance.
1 BTU = 1.055056 kJ
To convert British thermal unit to kilojoule, multiply the BTU value by 1.055056. To go the other way, divide by 1.055056 (or multiply by 0.9478171).
| BTU | kJ |
|---|---|
| 1 | 1.055056 |
| 2 | 2.110112 |
| 5 | 5.275279 |
| 10 | 10.55056 |
| 25 | 26.3764 |
| 50 | 52.75279 |
| 100 | 105.5056 |
| 250 | 263.764 |
| 500 | 527.5279 |
| 1000 | 1055.056 |
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 3600 kJ.
Multiply the value in BTU by 1.055056 to get kJ. For example, 10 BTU = 10.55056 kJ.
1 BTU equals 1.055056 kJ.
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.