Power Converter

Convert between watts and other practical power units.

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Related Conversions
1 mW to GW 2 mW to GW 5 mW to GW 20 mW to GW 75 mW to GW 100 mW to GW 150 mW to GW 201 mW to GW 250 mW to GW 268 mW to GW 357 mW to GW 2,230 mW to GW
Reverse Conversions
2 GW to mW 5 GW to mW 10 GW to mW 50 GW to mW 75 GW to mW 150 GW to mW 200 GW to mW 245 GW to mW 446 GW to mW 500 GW to mW 750 GW to mW 4,460 GW to mW
More Power Conversions
100 W to BTU/h 250 hp to kW 250 kW to hp 300 W to BTU/h 300 hp to kW 500 kW to hp 1,000 BTU/h to W 1,000 kW to hp 2,500 hp to kW 36,000 BTU/h to kW 60,000 BTU/h to kW 200,000 W to BTU/h

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Common Benchmarks

Desktop PC 300 W
Toaster 1200 W
Car engine 100 hp
Microwave 1000 W
E-bike motor 500 W
Refrigerator average 150 W

Formula

GW = MW × 0.001

Example

Example: convert 223 megawatts to gigawatts.

223 MW = 0.223 GW

Conversion table

megawatts (MW) gigawatts (GW)
1 MW 0.001 GW
2 MW 0.002 GW
5 MW 0.005 GW
10 MW 0.01 GW
20 MW 0.02 GW
50 MW 0.05 GW
100 MW 0.1 GW

Explanation

These are both units.

How to convert megawatts to gigawatts

  1. Start with the value in megawatts (MW).
  2. Multiply it by 0.001.
  3. The result is the measurement in gigawatts (GW).

Example: 223 MW → 0.223 GW

Frequently Asked Questions

How much is 223 megawatts in gigawatts?

223 megawatts equals 0.223 gigawatts.

How many gigawatts is 1 megawatt?

1 megawatt equals 0.001 gigawatts.

How many megawatts is 1 gigawatt?

1 gigawatt equals 1000 megawatts.

What is the difference between megawatts and gigawatts?

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 megawatts and gigawatts 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 megawatt equal 0.001 gigawatts?

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