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Convert BTU to Wh

British thermal units to watt hours. Enter a value to convert, or use the BTU to Wh chart further down the page.

1 BTU = 0.2930710702 Wh

1 British thermal unit equals 0.2930710702 watt hours. Going the other way, 1 watt hour = 3.412141633 British thermal units.

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Check this before you rely on it. This converter is provided free and without warranty, and its results are not professional advice.

How to convert BTU to Wh

To convert British thermal units to watt hours, multiply the British thermal unit value by 0.2930710702. You can also divide by 3.412141633 to get the same answer.

Wh = BTU × 0.2930710702

Worked example

Convert 15 BTU to watt hours:

15 BTU = 4.396066053 Wh

BTU to Wh conversion chart

Use this BTU to Wh table for quick reference without typing anything.

BTU to Wh conversion table
British thermal units (BTU)watt hours (Wh)
0.01 BTU0.002930710702 Wh
0.1 BTU0.02930710702 Wh
1 BTU0.2930710702 Wh
2 BTU0.5861421403 Wh
3 BTU0.8792132105 Wh
5 BTU1.465355351 Wh
10 BTU2.930710702 Wh
20 BTU5.861421403 Wh
50 BTU14.65355351 Wh
100 BTU29.30710702 Wh
1,000 BTU293.0710702 Wh

What is a British thermal unit?

The BTU is the energy needed to raise one pound of water by one degree Fahrenheit — about 1,055 joules. It rates heating and air-conditioning equipment in the US.

What is a watt hour?

A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.

Frequently asked questions

How many Wh are in a British thermal unit?

1 BTU equals 0.2930710702 Wh. Going the other way, 1 Wh is 3.412141633 BTU.

How do you convert BTU to Wh?

To convert British thermal units to watt hours, multiply the British thermal unit value by 0.2930710702. You can also divide by 3.412141633 to get the same answer.

What is 10 BTU in Wh?

10 BTU equals 2.930710702 Wh. The conversion chart on this page lists the other values people look up most often.

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