Power Converter

Convert between watts and other practical power units.

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Related Conversions
5 kW to mW 10 kW to mW 50 kW to mW 100 kW to mW 135 kW to mW 165 kW to mW 180 kW to mW 200 kW to mW 300 kW to mW 600 kW to mW 750 kW to mW 1,000 kW to mW
Reverse Conversions
1 mW to kW 2 mW to kW 5 mW to kW 25 mW to kW 75 mW to kW 100 mW to kW 120 mW to kW 240 mW to kW 360 mW to kW 600 mW to kW 1,000 mW to kW 3,000 mW to kW
More Power Conversions
1 GW to MW 10 MW to kW 100 W to BTU/h 100 hp to kW 250 kW to hp 300 W to BTU/h 750 hp to kW 5,000 hp to kW 18,000 BTU/h to kW 36,000 BTU/h to kW 60,000 BTU/h to kW 200,000 W to BTU/h

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Watts to Horsepower Horsepower to Watts Watts to Kilowatts Kilowatts to Watts Kilowatts to Horsepower Horsepower to Kilowatts BTU Per Hour to Watts Watts to BTU Per Hour BTU Per Hour to Kilowatts Kilowatts to BTU Per Hour

Common Benchmarks

Microwave 1000 W
Laptop charger 65 W
LED bulb 10 W
Air conditioner 3500 W
Car engine 100 hp
Phone fast charge 30 W

Formula

mW = kW × 1000000

Example

Example: convert 150 kilowatts to milliwatts.

150 kW = 150000000 mW

Conversion table

kilowatts (kW) milliwatts (mW)
1 kW 1000000 mW
2 kW 2000000 mW
5 kW 5000000 mW
10 kW 10000000 mW
20 kW 20000000 mW
50 kW 50000000.00000001 mW
100 kW 100000000 mW

Explanation

These are both units.

How to convert kilowatts to milliwatts

  1. Start with the value in kilowatts (kW).
  2. Multiply it by 1000000.
  3. The result is the measurement in milliwatts (mW).

Example: 150 kW → 150000000 mW

Frequently Asked Questions

How much is 150 kilowatts in milliwatts?

150 kilowatts equals 150000000 milliwatts.

How many milliwatts is 1 kilowatt?

1 kilowatt equals 1000000 milliwatts.

How many kilowatts is 1 milliwatt?

1 milliwatt equals 0.000001 kilowatts.

What is the difference between kilowatts and milliwatts?

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 kilowatts and milliwatts 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 kilowatt equal 1000000 milliwatts?

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