How many Watt hour are in one British thermal unit?

One British thermal unit equals 0.2930710702 Wh. Enter any amount above to get an exact figure for your own value.

Is this converter accurate?

Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.

Do you upload the numbers I enter?

No. The British thermal unit to Watt hour conversion runs entirely in your browser tab, and nothing you type is sent to a server.

Does it work on my phone?

Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

All converters

British thermal unit to Watt hour

Convert British thermal unit to Watt hour and get the exact value instantly.

British thermal unit (BTU)Watt hour (Wh)0.2930710702

1 BTU = 0.2930710702 Wh

Related conversions

British thermal unit → Joule British thermal unit → Kilojoule British thermal unit → Megajoule British thermal unit → Gigajoule British thermal unit → Calorie British thermal unit → Kilocalorie British thermal unit → Kilowatt hour British thermal unit → Electronvolt

About this conversion

To convert British thermal unit to Watt hour, multiply the number of British thermal unit by 0.2930710702.

Energy shows up as joules, calories, kilowatt-hours or BTU depending on the field (nutrition, an electricity bill, heating or physics), so a conversion makes the numbers comparable.

Conversion table

British thermal unit (BTU)	Watt hour (Wh)
1 BTU	0.2930710702 Wh
2 BTU	0.5861421403 Wh
5 BTU	1.465355351 Wh
10 BTU	2.930710702 Wh
100 BTU	29.30710702 Wh

How to use this converter

Enter your British thermal unit value
Type any number into the British thermal unit field. It starts at 1 so you can read the rate straight away.
Read the Watt hour result
The amount in Watt hour updates as you type, so there is no button to press and nothing to wait for.
Swap or keep exploring
Use the swap control to flip the direction, or pick a related conversion from the list below.

Frequently asked

How many Watt hour are in one British thermal unit?: One British thermal unit equals 0.2930710702 Wh. Enter any amount above to get an exact figure for your own value.
Is this converter accurate?: Yes. It uses the exact international definition of each unit and computes on your device, so the only rounding is for display.
Do you upload the numbers I enter?: No. The British thermal unit to Watt hour conversion runs entirely in your browser tab, and nothing you type is sent to a server.
Does it work on my phone?: Yes. It runs in any modern mobile browser and keeps working offline once the page has loaded.

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