How do I convert British thermal unit to Watt-hour?

Multiply the British thermal unit value by 0.29307107 to get the equivalent in Watt-hour. For example, 10 BTU = 2.9307107 Wh.

What is 100 British thermal unit in Watt-hour?

100 BTU is equal to 29.307107 Wh.

Yes, our converter uses precise conversion factors based on international standards. Results are accurate to at least 6 significant figures.

Free online British thermal unit (BTU) to Watt-hour (Wh) converter. Get instant, accurate results with our conversion tool.

British thermal unit (BTU)

Watt-hour (Wh)

0.293071

1 BTU = 0.293071 Wh

To convert British thermal unit (BTU) to Watt-hour (Wh), multiply by 0.29307107

Watt-hour (Wh) = British thermal unit (BTU) × 0.29307107