Energy
Convert British thermal unit (BTU) to watt-hour (Wh). Energy is the capacity to do work or transfer heat — the currency of every heat and material balance.
1 BTU = 0.2930711 Wh
To convert British thermal unit to watt-hour, multiply the BTU value by 0.2930711. To go the other way, divide by 0.2930711 (or multiply by 3.412142).
| BTU | Wh |
|---|---|
| 1 | 0.2930711 |
| 2 | 0.5861421 |
| 5 | 1.465355 |
| 10 | 2.930711 |
| 25 | 7.326777 |
| 50 | 14.65355 |
| 100 | 29.30711 |
| 250 | 73.26777 |
| 500 | 146.5355 |
| 1000 | 293.0711 |
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 1000 Wh.
Multiply the value in BTU by 0.2930711 to get Wh. For example, 10 BTU = 2.930711 Wh.
1 BTU equals 0.2930711 Wh.
Heat duties integrate to energy in kJ, MJ, or BTU; utilities are billed in kWh or MMBTU.