Power Converter

Convert between watts and other practical power units.

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Related Conversions
1 mW to kW 2.5 mW to kW 3.5 mW to kW 6 mW to kW 10 mW to kW 15 mW to kW 25 mW to kW 30 mW to kW 50 mW to kW 100 mW to kW 500 mW to kW 750 mW to kW
Reverse Conversions
2 kW to mW 2.5 kW to mW 5 kW to mW 6 kW to mW 10 kW to mW 15 kW to mW 20 kW to mW 50 kW to mW 100 kW to mW 150 kW to mW 200 kW to mW 1,000 kW to mW
More Power Conversions
10 kW to hp 50 kW to hp 75 W to BTU/h 100 kW to hp 500 hp to kW 1,000 hp to kW 1,500 W to BTU/h 18,000 BTU/h to kW 36,000 BTU/h to kW 48,000 BTU/h to kW 100,000 W to BTU/h 150,000 W to BTU/h

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Common Benchmarks

Desktop PC 300 W
Hair dryer 1800 W
LED bulb 10 W
Microwave 1000 W
Toaster 1200 W
Car engine 100 hp

Formula

kW = mW × 0.000001

Example

Example: convert 1.5 milliwatts to kilowatts.

1.5 mW = 0.0000015 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: 1.5 mW → 0.0000015 kW

Frequently Asked Questions

How much is 1.5 milliwatts in kilowatts?

1.5 milliwatts equals 0.0000015 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.