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Watt to BTU per hour

Convert Watt to BTU per hour and get the exact value instantly.

About this conversion

To convert Watt to BTU per hour, multiply the number of Watt by 3.412141633.

Power is measured in watts, kilowatts or horsepower, so comparing an engine, a motor and an appliance usually means converting to one shared unit first.

Conversion table

Watt (W)BTU per hour (BTU/h)
1 W3.412141633 BTU/h
2 W6.824283266 BTU/h
5 W17.06070817 BTU/h
10 W34.12141633 BTU/h
100 W341.2141633 BTU/h

How to use this converter

  1. Enter your Watt value

    Type any number into the Watt field. It starts at 1 so you can read the rate straight away.

  2. Read the BTU per hour result

    The amount in BTU per hour updates as you type, so there is no button to press and nothing to wait for.

  3. 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 BTU per hour are in one Watt?
One Watt equals 3.412141633 BTU/h. 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 Watt to BTU per 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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