Convert Watt Hours to British Thermal Units
1 watt hour = 3.412142 British thermal units. Type any value below to convert in either direction — the calculation happens in your browser.
Watt Hours to British Thermal Units formula
Multiply the number of watt hours by 3.412142 to get British thermal units.
British thermal units = watt hours × 3.412142To go the other way: divide the number of British thermal units by 3.412142, or multiply by 0.2930711.
watt hours = British thermal units ÷ 3.412142Watt Hours to British Thermal Units conversion table
| Watt Hours | British Thermal Units |
|---|---|
| 1 Wh | 3.412142 BTU |
| 2 Wh | 6.824283 BTU |
| 3 Wh | 10.236425 BTU |
| 4 Wh | 13.648567 BTU |
| 5 Wh | 17.060708 BTU |
| 6 Wh | 20.47285 BTU |
| 7 Wh | 23.884991 BTU |
| 8 Wh | 27.297133 BTU |
| 9 Wh | 30.709275 BTU |
| 10 Wh | 34.121416 BTU |
| 15 Wh | 51.182124 BTU |
| 20 Wh | 68.242833 BTU |
| 25 Wh | 85.303541 BTU |
| 30 Wh | 102.364249 BTU |
| 40 Wh | 136.485665 BTU |
| 50 Wh | 170.607082 BTU |
| 75 Wh | 255.910622 BTU |
| 100 Wh | 341.214163 BTU |
| 250 Wh | 853.035408 BTU |
| 500 Wh | 1,706.071 BTU |
| 1,000 Wh | 3,412.142 BTU |
British Thermal Units to Watt Hours conversion table
| British Thermal Units | Watt Hours |
|---|---|
| 1 BTU | 0.2930711 Wh |
| 2 BTU | 0.5861421 Wh |
| 3 BTU | 0.8792132 Wh |
| 4 BTU | 1.172284 Wh |
| 5 BTU | 1.465355 Wh |
| 6 BTU | 1.758426 Wh |
| 7 BTU | 2.051497 Wh |
| 8 BTU | 2.344569 Wh |
| 9 BTU | 2.63764 Wh |
| 10 BTU | 2.930711 Wh |
About the watt hour
A watt hour is the energy of one watt sustained for one hour, equal to 3,600 joules.
About the British thermal unit
A BTU is the energy needed to raise one pound of water by one degree Fahrenheit, about 1,055 joules.
Frequently asked questions
How many British thermal units are in a watt hour?
There are 3.412142 British thermal units in one watt hour.
How many watt hours are in a British thermal unit?
There are 0.2930711 watt hours in one British thermal unit.
Is this conversion exact?
The ratio between the watt hour and the British thermal unit is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.
What is 10 watt hours in British thermal units?
10 watt hours equals 34.121416 British thermal units.
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