BTU to Watt-hour Converter
Convert btus to watt-hours (BTU to Wh) instantly with this free online energy converter. Enter any value in the BTU field and get the equivalent in Watt-hour immediately. This converter handles any quantity — from tiny fractions to large numbers — with full precision. No signup, no ads in the widget, and the conversion runs entirely in your browser for instant results.
The conversion factor is exact: 1 BTU = 0.2930722222 Wh. To convert btus to watt-hours, multiply your BTU value by 0.2930722222. For example, 10 BTU = 2.930722222 Wh. You can also reverse the calculation: 1 Wh = 3.41212822 BTU.
Quick conversion table
| BTU (BTU) | Watt-hour (Wh) |
|---|---|
| 1 BTU | 0.2930722222 Wh |
| 5 BTU | 1.465361111 Wh |
| 10 BTU | 2.930722222 Wh |
| 25 BTU | 7.326805556 Wh |
| 50 BTU | 14.65361111 Wh |
| 100 BTU | 29.30722222 Wh |
Use the swap button to reverse the direction, or choose a different unit from the dropdown menus to convert within the energy category.
Formula
BTU to Watt-hour conversion: 1 BTU = 0.2930722222 Wh watt-hours = btus × 0.2930722222 1 Wh = 3.41212822 BTU btus = watt-hours × 3.41212822
Example
Example: Convert 10 BTU to Wh: 10 BTU × 0.2930722222 = 2.930722222 Wh So, 10 BTU is about 2.930722222 Wh. To convert back, multiply by 3.41212822: 2.930722222 Wh × 3.41212822 = 10 BTU.
How to Use
- Enter the value you want to convert in the BTU field
- The result in Watt-hour appears instantly below
- Use the dropdown menus to change units if needed
- Click 'Swap Units' to reverse the conversion direction
- Copy the result or adjust the input for a new conversion
Frequently Asked Questions
How do I convert btus to watt-hours?
Enter the value in BTU (BTU) in the 'From' field. The equivalent in Watt-hour (Wh) appears instantly in the 'To' field. The converter uses precise conversion factors and updates in real time as you type.
What is the formula to convert BTU to Wh?
1 BTU = 0.2930722222 Wh, so watt-hours = btus × 0.2930722222. To convert back, 1 Wh = 3.41212822 BTU. The full formula and a worked example are shown on this page.
How many watt-hours are in one BTU?
1 BTU = 0.2930722222 Wh.
Is this BTU to Watt-hour converter free?
Yes, completely free with no signup, no limits, and no ads in the converter widget. You can convert as many values as you need. The tool runs entirely in your browser, so your data never leaves your device.
Can I convert watt-hours back to btus?
Yes. Click the 'Swap Units' button to reverse the direction. You can also use the dropdown menus to select any other energy unit for either field.
How accurate is the BTU to Wh conversion?
The converter uses high-precision conversion factors (up to 8 decimal places). Results are displayed with up to 6 decimal places, with trailing zeros removed for readability. For scientific or engineering work, always verify with official standards.