British thermal units to Kilowatt-hours
Type a value in British thermal units and get the result in Kilowatt-hours, calculated exactly.
100 British thermal units ≈ 0.02930710702 Kilowatt-hours
Precision
Exact factorRounded for display to about 10 significant digits.
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Formula
kWh = BTU × 0.00029307107
To convert British thermal units to Kilowatt-hours, multiply the value by 0.00029307107.
Worked examples
- 1 BTU × 0.00029307107 ≈ 0.00029307107 kWh
- 100 BTU × 0.00029307107 ≈ 0.02930710702 kWh
- 50 BTU × 0.00029307107 ≈ 0.01465355351 kWh
This factor is exact by definition.
Conversion table
| British thermal units (BTU) | Kilowatt-hours (kWh) |
|---|---|
| 1 | ≈ 0.0002930711 |
| 2 | ≈ 0.0005861421 |
| 3 | ≈ 0.0008792132 |
| 4 | ≈ 0.001172284 |
| 5 | ≈ 0.001465355 |
| 6 | ≈ 0.001758426 |
| 7 | ≈ 0.002051497 |
| 8 | ≈ 0.002344569 |
| 9 | ≈ 0.00263764 |
| 10 | ≈ 0.002930711 |
| 15 | ≈ 0.004396066 |
| 20 | ≈ 0.005861421 |
| 25 | ≈ 0.007326777 |
| 30 | ≈ 0.008792132 |
| 40 | ≈ 0.01172284 |
| 50 | ≈ 0.01465355 |
| 60 | ≈ 0.01758426 |
| 70 | ≈ 0.02051497 |
| 75 | ≈ 0.02198033 |
| 80 | ≈ 0.02344569 |
| 90 | ≈ 0.0263764 |
| 100 | ≈ 0.02930711 |
Values marked ≈ are rounded; the rest are exact.
Reverse table: Kilowatt-hours to British thermal units
| Kilowatt-hours (kWh) | British thermal units (BTU) |
|---|---|
| 1 | ≈ 3,412.142 |
| 2 | ≈ 6,824.283 |
| 3 | ≈ 10,236.42 |
| 4 | ≈ 13,648.57 |
| 5 | ≈ 17,060.71 |
| 6 | ≈ 20,472.85 |
| 7 | ≈ 23,884.99 |
| 8 | ≈ 27,297.13 |
| 9 | ≈ 30,709.27 |
| 10 | ≈ 34,121.42 |
| 15 | ≈ 51,182.12 |
| 20 | ≈ 68,242.83 |
| 25 | ≈ 85,303.54 |
| 30 | ≈ 102,364.25 |
| 40 | ≈ 136,485.67 |
| 50 | ≈ 170,607.08 |
| 60 | ≈ 204,728.5 |
| 70 | ≈ 238,849.91 |
| 75 | ≈ 255,910.62 |
| 80 | ≈ 272,971.33 |
| 90 | ≈ 307,092.75 |
| 100 | ≈ 341,214.16 |
Unit definitions
- British thermal units BTU
- The International Table BTU: exactly 1055.05585262 joules.
- Kilowatt-hours kWh
- One kilowatt for one hour: exactly 3.6 megajoules; the unit on electricity bills.
Questions people ask
British thermal units to Kilowatt-hours: what is the conversion factor?
One BTU is ≈ 0.00029307107 kWh.
How do I convert British thermal units to Kilowatt-hours?
Use the formula above. For example, 100 BTU = ≈ 0.02930710702 kWh.
Is the conversion exact?
Yes. Both units have exact definitions, so the factor is exact; a result is only rounded when its decimals never end.
Factors checked 19 October 2026.