Convert Power from Milliwatts (mW) to other units

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Milliwatt Conversion Formulas

Milliwatt to Watt Conversion Formula

To convert from Milliwatt (mW) to Watt (W), use the following formula:

Watt (W)

= 11000× Milliwatt (mW)

= 0.001× Milliwatt (mW)


Milliwatt to Kilowatt Conversion Formula

To convert from Milliwatt (mW) to Kilowatt (kW), use the following formula:

Kilowatt (kW)

= 11000 × 11000× Milliwatt (mW)

= 1106× Milliwatt (mW)

= 10-6× Milliwatt (mW)


Milliwatt to Megawatt Conversion Formula

To convert from Milliwatt (mW) to Megawatt (MW), use the following formula:

Megawatt (MW)

= 11000 × 1106× Milliwatt (mW)

= 1109× Milliwatt (mW)

= 10-9× Milliwatt (mW)


Milliwatt to Gigawatt Conversion Formula

To convert from Milliwatt (mW) to Gigawatt (GW), use the following formula:

Gigawatt (GW)

= 11000 × 1109× Milliwatt (mW)

= 11012× Milliwatt (mW)

= 10-12× Milliwatt (mW)


Milliwatt to Horsepower (metric) Conversion Formula

To convert from Milliwatt (mW) to Horsepower (metric) (PS), use the following formula:

Horsepower (metric) (PS)

= 11000 × 1735.49875× Milliwatt (mW)

= 0.0000013596216173039043234× Milliwatt (mW)


Milliwatt to British thermal unit per second Conversion Formula

To convert from Milliwatt (mW) to British thermal unit per second (Btu/s), use the following formula:

British thermal unit per second (Btu/s)

= 11000 × 0.737562149 × 1778.16937× Milliwatt (mW)

= 9.4781698873601257269× 10-7× Milliwatt (mW)

With 0.737562149 is the ratio between the base units Foot-pound per second (ft-lb/s) and Watt (W).


Milliwatt to Foot-pound per second Conversion Formula

To convert from Milliwatt (mW) to Foot-pound per second (ft-lb/s), use the following formula:

Foot-pound per second (ft-lb/s)

= 11000 × 0.737562149× Milliwatt (mW)

= 0.000737562149× Milliwatt (mW)

With 0.737562149 is the ratio between the base units Foot-pound per second (ft-lb/s) and Watt (W).


Milliwatt to Horsepower (British) Conversion Formula

To convert from Milliwatt (mW) to Horsepower (British) (hp), use the following formula:

Horsepower (British) (hp)

= 11000 × 0.737562149 × 1550× Milliwatt (mW)

= 0.0000013410220890909090909× Milliwatt (mW)

With 0.737562149 is the ratio between the base units Foot-pound per second (ft-lb/s) and Watt (W).

What is a Milliwatt (mW)?

A milliwatt (mW) is a unit used to measure power.

It is equal to one-thousandth of a watt.

To put it simply, you need 1,000 milliwatts to equal one watt (1 W = 1,000 mW).


What Are Milliwatts Used For?

The milliwatt (mW) is the perfect unit for measuring the small amount of power used by many common electronic devices.

For example, the power of a Wi-Fi signal, the laser in a Blu-ray player, and the tiny LEDs on your electronics are all measured in milliwatts.

Using such small amounts of power is key to making the batteries last longer in your favorite gadgets, including wireless earbuds, smartwatches, and TV remotes.


How Do You Convert Milliwatts? (mW to Watts and dBm)

While the most common conversion is between milliwatts and watts (1,000 mW = 1 W), some technical fields use a different unit.

In telecommunications and fiber optics, power is often measured in dBm (decibels relative to one milliwatt). This scale makes it easier to work with a vast range of power levels.

For reference, 0 dBm is equal to exactly 1 mW.


Why Milliwatts (mW) Are Important for Laser Safety

When it comes to products with lasers, the milliwatt (mW) rating is a critical safety measure.

To prevent eye injuries, regulatory bodies like the FDA classify lasers based on their power output in milliwatts.

For example, handheld laser pointers sold to the public are legally required in most regions to have a power output of less than 5 mW.

This is a clear example of how milliwatt ratings are used to keep consumers safe.