Power Converter

Convert between watts and other practical power units.

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Related Conversions
1.5 mW to GW 2 mW to GW 2.5 mW to GW 4 mW to GW 5 mW to GW 50 mW to GW 75 mW to GW 100 mW to GW 200 mW to GW 500 mW to GW 750 mW to GW 1,000 mW to GW
Reverse Conversions
1 GW to mW 1.5 GW to mW 2 GW to mW 2.5 GW to mW 10 GW to mW 20 GW to mW 25 GW to mW 100 GW to mW 150 GW to mW 200 GW to mW 250 GW to mW 1,000 GW to mW
More Power Conversions
1 BTU/h to W 1 MW to kW 10 kW to hp 25 kW to hp 300 hp to kW 500 W to BTU/h 750 hp to kW 1,800 W to BTU/h 2,500 hp to kW 10,000 hp to kW 18,000 BTU/h to kW 60,000 BTU/h to kW

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Common Benchmarks

Laptop charger 65 W
Hair dryer 1800 W
Air conditioner 3500 W
Electric kettle 1500 W
Car engine 100 hp
Toaster 1200 W

Formula

GW = MW × 0.001

Example

Example: convert 1 megawatt to gigawatts.

1 MW = 0.001 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: 1 MW → 0.001 GW

Frequently Asked Questions

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.

How do you convert megawatts to gigawatts?

Multiply the value in megawatts by 0.001 to get gigawatts.