BTU to Kilowatt-hours Converter BTU → kWh
1 british thermal unit (BTU) = 0.00029307107 kilowatt-hours (kWh). Type a value below — the conversion happens instantly, entirely on your device.
1 BTU = 0.0002930710702 kWh
100000 BTU = 29.307107 kilowatt-hours
100000 × 0.000293071 = 29.307107
1 BTU equals 0.000293071 kWh, so multiplying by 0.000293071 converts the value. The result describes the exact same quantity — only the measuring stick changes.
How to convert BTU to kilowatt-hours
kilowatt-hours = BTU × 0.00029307107 — multiply the british thermal unit value by 0.000293071.
Example: 100,000 BTU = 29.3071 kWh.
To convert the other way: BTU = kilowatt-hours ÷ 0.00029307107 — or use the dedicated kWh to BTU converter .
Divide BTU by 3,412 for kilowatt-hours: a 100,000 BTU furnace input is 29.3 kWh. This is the bridge between US gas-appliance ratings and the kWh used on energy bills.
BTU to Kilowatt-hours conversion table
| BTU (BTU) | Kilowatt-hours (kWh) |
|---|---|
| 0.1 | 0.000029307107 |
| 0.25 | 0.000073267768 |
| 0.5 | 0.00014653554 |
| 1 | 0.00029307107 |
| 2 | 0.00058614214 |
| 3 | 0.00087921321 |
| 4 | 0.0011722843 |
| 5 | 0.0014653554 |
| 6 | 0.0017584264 |
| 7 | 0.0020514975 |
| 8 | 0.0023445686 |
| 9 | 0.0026376396 |
| 10 | 0.0029307107 |
| 15 | 0.0043960661 |
| 20 | 0.0058614214 |
| 25 | 0.0073267768 |
| 30 | 0.0087921321 |
| 40 | 0.011722843 |
| 50 | 0.014653554 |
| 75 | 0.02198033 |
| 100 | 0.029307107 |
| 250 | 0.073267768 |
| 500 | 0.14653554 |
| 1000 | 0.29307107 |
About the units
What is a british thermal unit?
A British thermal unit (BTU) is about 1,055 joules — the energy to heat one pound of water by 1 °F. Air conditioners and heaters are rated in BTU per hour.
What is a kilowatt-hour?
A kilowatt-hour (kWh) is 3.6 million joules — the unit on your electricity bill. Running a 1,000 W appliance for one hour uses exactly 1 kWh.
Frequently asked questions
How many kilowatt-hours are in 1 british thermal unit?
1 british thermal unit (BTU) = 0.00029307107 kilowatt-hours (kWh).
What is the formula to convert BTU to kilowatt-hours?
kilowatt-hours = BTU × 0.00029307107 — multiply the british thermal unit value by 0.000293071.
How do I convert BTU to kWh without a calculator?
Multiply by 0.000293 for a close estimate. Exact factor: 1 BTU = 0.00029307107 kWh.
Is this BTU-to-kWh converter accurate and private?
Yes. It uses the exact internationally defined conversion factors and computes results locally in your browser — your input is never sent to a server, and the page keeps working offline.