Milliwatt to BTU/Minute Converter

Power Converter

22 units available

Decimals:

From

To

5.686903e-5

1 mW = 5.686903e-5 BTU/min

Formula:

BTU/min = mW × 0.000056869

With your value: 1 mW = 5.686903e-5 BTU/min

How big is that?

Everyday references on a logarithmic scale, all expressed in milliwatt so you can sanity-check the result.

Your value1.00 mW

LED bulb (9.0e+3× your value)9.00e+3 mW

Laptop (6.5e+4× your value)6.50e+4 mW

Microwave oven (1.0e+6× your value)1.00e+6 mW

Electric kettle (3.0e+6× your value)3.00e+6 mW

Family car engine (9.0e+7× your value)9.00e+7 mW

Other Milliwatt to BTU/Minute conversions

2 mW to BTU/min 3 mW to BTU/min 4 mW to BTU/min 5 mW to BTU/min 6 mW to BTU/min 7 mW to BTU/min 8 mW to BTU/min

Milliwatt to BTU/Minute Conversion Table

Milliwatt (mW)	BTU/Minute (BTU/min)
0.5	2.843451e-5
1	5.686903e-5
2	0.000114
5	0.000284
10	0.000569
15	0.000853
20	0.001137
25	0.001422
50	0.002843
100	0.005687
250	0.014217
500	0.028435
1000	0.056869

BTU/Minute to Milliwatt Conversion Table

BTU/Minute (BTU/min)	Milliwatt (mW)
0.5	8,792.132105
1	17,584.26421
2	35,168.528421
5	87,921.321052
10	175,842.642103
15	263,763.963155
20	351,685.284206
25	439,606.605257
50	879,213.210515
100	1,758,426.42103
250	4,396,066.052575
500	8,792,132.10515
1000	17,584,264.2103

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Milliwatt (mW)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

BTU/Minute (BTU/min)

Power

Exact conversion

Derived from the watt (1 W = 1 J/s).

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Milliwatt to BTU/Minute

To convert from Milliwatt (mW) to BTU/Minute (BTU/min), multiply the value by 5.686903e-5.

Formula: BTU/min = mW × 0.000056869

Reverse: mW = BTU/min × 17,584.2642103

Step-by-Step Example

Start with your value in Milliwatt. For example: 5 mW
Multiply by the conversion factor: 5 x 5.686903e-5
The result is: 0.000284 BTU/min

About Milliwatt

The milliwatt (mW) is a unit of power. One milliwatt equals 0.001 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

About BTU/Minute

The btu/minute (BTU/min) is a unit of power. One btu/minute equals 17.58426421 watts. UnitConvertLab converts it against every other power unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: power calculations, engineering and science, education.

Frequently Asked Questions

How many BTU/Minute are in 1 Milliwatt?

There are exactly 5.686903e-5 BTU/Minute in 1 Milliwatt. This means the conversion factor from Milliwatt to BTU/Minute is 5.686903e-5.

What is the formula to convert Milliwatt to BTU/Minute?

The formula to convert Milliwatt to BTU/Minute is: BTU/min = mW × 0.000056869. For example, to convert 10 Milliwatt to BTU/Minute, you would multiply 10 by 5.686903e-5.

What is a Milliwatt?