Power Converter

Convert between watts and other practical power units.

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Related Conversions
2 mW to kW 5 mW to kW 25 mW to kW 50 mW to kW 60 mW to kW 82.5 mW to kW 90 mW to kW 100 mW to kW 120 mW to kW 300 mW to kW 500 mW to kW 1,500 mW to kW
Reverse Conversions
20 kW to mW 60 kW to mW 75 kW to mW 82.5 kW to mW 100 kW to mW 120 kW to mW 150 kW to mW 250 kW to mW 300 kW to mW 500 kW to mW 1,000 kW to mW 1,500 kW to mW
More Power Conversions
1 BTU/h to W 25 kW to hp 50 kW to hp 60 W to BTU/h 100 hp to kW 200 hp to kW 250 kW to hp 1,000 BTU/h to W 1,800 W to BTU/h 3,000 hp to kW 5,000 hp to kW 48,000 BTU/h to kW

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Common Benchmarks

Microwave 1000 W
LED bulb 10 W
Electric kettle 1500 W
Car engine 100 hp
E-bike motor 500 W
Phone fast charge 30 W

Formula

kW = mW × 0.000001

Example

Example: convert 75 milliwatts to kilowatts.

75 mW = 0.000075 kW

Conversion table

milliwatts (mW) kilowatts (kW)
1 mW 0.000001 kW
2 mW 0.000002 kW
5 mW 0.000005 kW
10 mW 0.00001 kW
20 mW 0.00002 kW
50 mW 0.00005 kW
100 mW 0.0001 kW

Explanation

These are both units.

How to convert milliwatts to kilowatts

  1. Start with the value in milliwatts (mW).
  2. Multiply it by 0.000001.
  3. The result is the measurement in kilowatts (kW).

Example: 75 mW → 0.000075 kW

Frequently Asked Questions

How much is 75 milliwatts in kilowatts?

75 milliwatts equals 0.000075 kilowatts.

How many kilowatts is 1 milliwatt?

1 milliwatt equals 0.000001 kilowatts.

How many milliwatts is 1 kilowatt?

1 kilowatt equals 1000000 milliwatts.

What is the difference between milliwatts and kilowatts?

Both measure power, but they are commonly used in different contexts. The watt (W) is the SI unit and is widely used in electrical/device specs, while horsepower (hp) is a traditional unit often used to describe engines and machinery.

Where are milliwatts and kilowatts used?

Watts are common in electrical power/consumption (devices, appliances, lighting). Horsepower is commonly used for mechanical power (engines, pumps, compressors, machinery).

Why does 1 milliwatt equal 0.000001 kilowatts?

Because power units are defined with a fixed relationship, which determines the conversion factor.