Convert Watt Hour to British Thermal Unit
Use this free converter to change watt hours (Wh) into british thermal units (BTU). Watt hour and british thermal unit both measure energy. As a quick reference, 1 Wh equals 3.4121416 BTU, and 1 BTU equals 0.29307107 Wh.
Free · runs in your browser · no sign-up
British Thermal Unit (BTU)
3.4121416
1 Wh = 3.4121416 BTU
Energy conversion table
| Watt Hour | British Thermal Unit |
|---|---|
| 0.01 | 0.034121416 |
| 0.1 | 0.34121416 |
| 0.5 | 1.7060708 |
| 1 | 3.4121416 |
| 2 | 6.8242833 |
| 3 | 10.236425 |
| 5 | 17.060708 |
| 10 | 34.121416 |
| 20 | 68.242833 |
| 25 | 85.303541 |
| 50 | 170.60708 |
| 100 | 341.21416 |
| 1,000 | 3412.1416 |
How to convert Watt Hour to British Thermal Unit
Multiply the watt hour value by 3.4121416 to get british thermal units.
- Enter the number of watt hours you want to convert.
- The converter instantly shows the equivalent value in british thermal units.
- Worked example: 15 Wh × 3.4121416 = 51.182125 BTU.
- Use the swap button to reverse the conversion (british thermal unit to watt hour).
About these units
Watt Hour (Wh)
- Definition
- A watt-hour (Wh) is the energy of one watt sustained for one hour, equal to 3,600 joules.
- History
- It arose with the electricity industry as a practical billing unit.
- Current use
- Watt-hours rate batteries and small energy stores.
British Thermal Unit (BTU)
- Definition
- A British thermal unit (BTU) is the energy needed to raise one pound of water by one degree Fahrenheit.
- History
- It developed with steam engineering in Britain and the United States.
- Current use
- BTUs rate heating, air-conditioning, and appliance energy in the US.
Frequently asked questions
How many british thermal units are in a watt hour?
There are 3.4121416 BTU in 1 Wh. To convert, multiply the number of watt hours by 3.4121416.
How do I convert watt hours to british thermal units?
Multiply the watt hour value by 3.4121416 to get british thermal units. For example, 10 Wh = 34.121416 BTU.
Is this watt hour-to-british thermal unit converter free?
Yes. This converter is completely free, runs entirely in your browser, and requires no sign-up. Your inputs never leave your device.
Convert Watt Hour to other energy units
| Unit | 1 Watt Hour equals |
|---|---|
| Joule (J) | 3600 J |
| Kilojoule (kJ) | 3.6 kJ |
| Calorie (cal) | 860.42065 cal |
| Kilocalorie (kcal) | 0.86042065 kcal |
| Kilowatt Hour (kWh) | 0.001 kWh |
| Electronvolt (eV) | 2.2469e+22 eV |
| British Thermal Unit (BTU) | 3.4121416 BTU |
| Foot-Pound (ft·lb) | 2655.2237 ft·lb |