British thermal units (IT) to Watt-hours
Convert british thermal units (it) to watt-hours (BTU to Wh). 1 BTU = 0.293071070172 Wh. Use the calculator, formula and conversion table.
How to convert british thermal units (it) to watt-hours
Multiply the amount in british thermal units (it) by 0.293071070172 to get watt-hours. The displayed factor and results are rounded to 12 significant digits.
Wh = BTU × 0.293071070172Worked example
1 BTU = 0.293071070172 Wh. Change the amount in the calculator above to use your own value.
Units and assumptions
A watt-hour is 3,600 joules. Calories use the thermochemical definition (4.184 J); BTU uses the International Table definition.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
British thermal units (IT) to Watt-hours table
| British thermal units (IT) (BTU) | Watt-hours (Wh) |
|---|---|
| 0 | 0 |
| 1 | 0.293071070172 |
| 5 | 1.46535535086 |
| 10 | 2.93071070172 |
| 25 | 7.32677675431 |
| 100 | 29.3071070172 |
| 1,000 | 293.071070172 |
About this conversion
What is the formula for british thermal units (it) to watt-hours?
Wh = BTU × 0.293071070172. Multiply the amount in british thermal units (it) by 0.293071070172 to get watt-hours. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to british thermal units (it)?
Use the watt-hours to british thermal units (it) calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the energy converter to browse all supported pairs.