BTU per Hour (BTU/h)	Milliwatts (mW)
1 BTU/h	293.0711 mW
2 BTU/h	586.1421 mW
5 BTU/h	1465.36 mW
10 BTU/h	2930.71 mW
25 BTU/h	7326.78 mW
50 BTU/h	14653.55 mW
100 BTU/h	29307.11 mW
250 BTU/h	73267.77 mW
500 BTU/h	146535.54 mW
1000 BTU/h	293071.07 mW

Convert BTU per Hour to Milliwatts

Convert btu per hour to milliwatts (BTU/h to mW) with our instant calculator. 1 BTU/h = 293.07107 mW. Includes exact formula and reference tables.

How to Convert BTU per Hour to Milliwatts (BTU/h to mW)

1 BTU per Hour (BTU/h) is equal to 293.07107 Milliwatts (mW). Multiply the btu per hour value by 293.07107

Quick Answer 1 BTU/h = 293.07107 mW

Formula mW = BTU/h × 293.07107

Inverse Factor 1 mW = 0.003412 BTU/h

Unit Definitions & Metrology Context

The SI unit of power is the watt (W), equal to 1 joule per second. 1 mechanical horsepower equals ~745.7 watts.

About BTU per Hour (BTU/h): BTU per Hour (BTU/h) is a unit in the Power measurement category. It is widely used in btu per hour (heating / cooling). Relative to the power base unit, 1 BTU/h equals 0.293071 Watts (W).

About Milliwatts (mW): Milliwatt (mW) is a unit in the Power measurement category. It is widely used in rf transmitters, wi-fi & laser output. Relative to the power base unit, 1 mW equals 0.001 Watts (W).

Need to convert in the opposite direction? Visit our Convert Milliwatts to BTU per Hour (mW to BTU/h) calculator (1 mW = 0.003412 BTU/h).

Step-by-Step Worked Examples (BTU/h to mW)

Convert 5 BTU per Hour to Milliwatts: Applying the formula (mW = BTU/h × 293.07107): starting with 5 BTU/h, multiply the btu per hour value by 293.07107 to get 1465.3553 mW.
Convert 10 BTU per Hour to Milliwatts: Applying the formula (mW = BTU/h × 293.07107): starting with 10 BTU/h, multiply the btu per hour value by 293.07107 to get 2930.7107 mW.
Convert 50 BTU per Hour to Milliwatts: Applying the formula (mW = BTU/h × 293.07107): starting with 50 BTU/h, multiply the btu per hour value by 293.07107 to get 14653.5535 mW.

Popular Power Conversions

Horsepower (Mechanical/US) ⇄ Kilowatt

1 mechanical horsepower equals approximately 0.7457 kilowatts.

Kilowatt ⇄ Horsepower (Mechanical/US)

Multiply kilowatts by ~1.34102 to calculate mechanical horsepower.

Kilowatt ⇄ Watt

1 kilowatt equals exactly 1,000 watts.

Megawatt ⇄ Kilowatt

1 megawatt equals exactly 1,000 kilowatts or 1,000,000 watts.

Frequently Asked Questions

Verified answers and formulas for converting btu per hour to milliwatts.

How many milliwatts are in 1 btu per hour?

There are 293.07107 milliwatts (mW) in 1 btu per hour (BTU/h). Conversely, 1 milliwatt equals 0.003412 btu per hour.

How do you convert btu per hour to milliwatts?

To convert btu per hour (BTU/h) to milliwatts (mW), use the formula: mW = BTU/h × 293.07107. Multiply the btu per hour value by 293.07107. For example, 10 BTU/h equals 2930.7107 mW.

How do I convert back from milliwatts to btu per hour?

To convert in the reverse direction from milliwatts (mW) to btu per hour (BTU/h), use the inverse formula: BTU/h = mW × 0.003412141635. Multiply the milliwatt value by 0.003412141635 (1 mW = 0.003412 BTU/h).

What is the difference between btu per hour (BTU/h) and milliwatt (mW)?

Both btu per hour and milliwatt measure power. BTU per Hour (BTU/h) is a unit in the Power measurement category. It is widely used in btu per hour (heating / cooling). Relative to the power base unit, 1 BTU/h equals 0.293071 Watts (W). Milliwatt (mW) is a unit in the Power measurement category. It is widely used in rf transmitters, wi-fi & laser output. Relative to the power base unit, 1 mW equals 0.001 Watts (W).

How many watts are in 1 horsepower?

1 mechanical (imperial) horsepower equals approximately 745.7 watts. 1 metric horsepower (PS) equals ~735.5 watts.