How to Convert Kilowatt-hours to British thermal units (kWh to BTU)
Energy conversions link food labels in kJ and kcal, SP Group bills in kWh and air-conditioner capacity in BTU. This guide shows how to convert kilowatt-hours into british thermal units by hand, with examples and a quick-reference table.
The conversion
To convert kilowatt-hours to british thermal units, multiply the value by 3,412.1416416012. To go the other way, divide by the same number (or multiply by 0.0002930711). For a quick estimate, multiply by about 3,400.
British thermal units = kilowatt-hours × 3,412.1416416012
Worked examples
- 3 kWh = 10,236.42 BTU
- 12.5 kWh = 42,651.77 BTU
- 75 kWh = 255,910.62 BTU
Kilowatt-hours to British thermal units table
| Kilowatt-hours | British thermal units |
|---|---|
| 1 kWh | 3,412.14 BTU |
| 2 kWh | 6,824.28 BTU |
| 5 kWh | 17,060.71 BTU |
| 10 kWh | 34,121.42 BTU |
| 20 kWh | 68,242.83 BTU |
| 25 kWh | 85,303.54 BTU |
| 50 kWh | 170,607.08 BTU |
| 100 kWh | 341,214.16 BTU |
| 250 kWh | 853,035.41 BTU |
| 500 kWh | 1,706,070.82 BTU |
| 1,000 kWh | 3,412,141.64 BTU |
Common questions
Is kWh to BTU exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the British thermal units to Kilowatt-hours converter.
Mistakes to avoid
Rounding the factor too early
Using 3 instead of 3.28 for feet per metre introduces an error of almost 9% before you have started.
Dropping the units
A bare number without a unit is easy to misread later. Always write the unit with the result.
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Background
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
Unit conversion is simply multiplication by a fixed ratio. The ratio between two units of the same quantity never changes, so once you know it you can convert any value in either direction.
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
For any value, use the Kilowatt-hours to British thermal units Converter or browse all energy converters.
Run your own numbers: Kilowatt-hours to British thermal units Converter