British Thermal Unit to Watt-hour Converter
Convert British Thermal Unit (BTU) to Watt-hour (Wh) instantly with this energy converter. Use the calculator above, then check the formula, worked examples, table, and manual steps below.
Formula
Wh = BTU × 0.2930710702
Multiply the British Thermal Unit value by 0.2930710702 to get the equivalent value in Watt-hour.
Example Conversions
1 British Thermal Unit (BTU)
0.2930710702 Watt-hour (Wh)
5 British Thermal Unit (BTU)
1.465355351 Watt-hour (Wh)
10 British Thermal Unit (BTU)
2.930710702 Watt-hour (Wh)
25 British Thermal Unit (BTU)
7.326776754 Watt-hour (Wh)
100 British Thermal Unit (BTU)
29.30710702 Watt-hour (Wh)
Conversion Table
| British Thermal Unit (BTU) | Watt-hour (Wh) |
|---|---|
| 0.1 | 0.02930710702 |
| 0.5 | 0.1465355351 |
| 1 | 0.2930710702 |
| 2 | 0.5861421403 |
| 5 | 1.465355351 |
| 10 | 2.930710702 |
| 25 | 7.326776754 |
| 50 | 14.65355351 |
| 100 | 29.30710702 |
| 250 | 73.26776754 |
| 500 | 146.5355351 |
| 1000 | 293.0710702 |
How to Convert Manually
Use these steps to convert British Thermal Unit values to Watt-hour without the calculator.
- Write down the value in British Thermal Unit (BTU) that you want to convert.
- Multiply that value by 0.2930710702.
- For example, 10 British Thermal Unit × 0.2930710702 = 2.930710702 Watt-hour.
- Label the result as Watt-hour (Wh).
Relative Size Comparison
This chart shows the visual difference in size between exactly one British Thermal Unit and one Watt-hour.
About British Thermal Unit and Watt-hour
Converting British Thermal Unit to Watt-hour is common in energy applications, engineering, and everyday life. Whether you are translating specifications from international manuals, completing homework, or planning a project, having an accurate BTU to Wh calculation ensures your measurements are correct.
The British Thermal Unit is a unit of energy. One British Thermal Unit equals 1055.055853 J in this converter's base scale.
The Watt-hour is also a energy unit. One Watt-hour equals 3600 J in the same base scale.
Precision and Rounding: When converting British Thermal Unit to Watt-hour, you may encounter long decimal numbers. For most practical purposes, rounding to two or three decimal places is sufficient. However, for machining, scientific research, or strict engineering tolerances, you should maintain as much precision as possible before your final calculation.
Worked Example
15 British Thermal Unit equals 4.396066053 Watt-hour.
15 BTU × 0.2930710702 = 4.396066053 Wh
FAQ
How do I convert British Thermal Unit to Watt-hour?
Multiply the British Thermal Unit value by 0.2930710702 to get the equivalent value in Watt-hour.
What is the formula for British Thermal Unit to Watt-hour?
The formula is Wh = BTU × 0.2930710702.
How many Watt-hour are in 1 British Thermal Unit?
1 British Thermal Unit equals 0.2930710702 Watt-hour.
Can I convert Watt-hour back to British Thermal Unit?
Yes. 1 Watt-hour equals 3.412141633 British Thermal Unit, and the related converter can reverse the calculation.
What are common names for British Thermal Unit and Watt-hour?
British Thermal Unit is shown as BTU and may also be searched as btu, british thermal unit. Watt-hour is shown as Wh and may also be searched as watt hour, watt-hour.
Was this page helpful?
Let us know if this converter met your needs.