How many BTU per hour are in one Milliwatt?

One Milliwatt equals 0.003412141633 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 Milliwatt 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.

All converters

Milliwatt to BTU per hour

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

Milliwatt (mW)BTU per hour (BTU/h)0.003412141633

1 mW = 0.003412141633 BTU/h

Related conversions

Milliwatt → Watt Milliwatt → Kilowatt Milliwatt → Megawatt Milliwatt → Gigawatt Milliwatt → Horsepower Milliwatt → Metric horsepower Milliwatt → Ton of refrigeration Milliwatt → Calorie per second

About this conversion

To convert Milliwatt to BTU per hour, multiply the number of Milliwatt by 0.003412141633.

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

Milliwatt (mW)	BTU per hour (BTU/h)
1 mW	0.003412141633 BTU/h
2 mW	0.006824283266 BTU/h
5 mW	0.01706070817 BTU/h
10 mW	0.03412141633 BTU/h
100 mW	0.3412141633 BTU/h

How to use this converter

Enter your Milliwatt value
Type any number into the Milliwatt field. It starts at 1 so you can read the rate straight away.
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.
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 Milliwatt?: One Milliwatt equals 0.003412141633 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 Milliwatt 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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