Power Converter

Convert between watts and other practical power units.

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Related Conversions
1 mW to GW 2 mW to GW 25 mW to GW 50 mW to GW 100 mW to GW 200 mW to GW 250 mW to GW 500 mW to GW 1,000 mW to GW 1,440 mW to GW 1,920 mW to GW 4,800 mW to GW
Reverse Conversions
1 GW to mW 2 GW to mW 5 GW to mW 50 GW to mW 150 GW to mW 200 GW to mW 250 GW to mW 750 GW to mW 1,320 GW to mW 1,440 GW to mW 12,000 GW to mW 24,000 GW to mW
More Power Conversions
10 MW to kW 25 kW to hp 100 hp to kW 500 hp to kW 500 kW to hp 1,000 W to BTU/h 1,500 W to BTU/h 4,000 hp to kW 12,000 BTU/h to kW 18,000 BTU/h to kW 60,000 BTU/h to kW 150,000 W to BTU/h

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Common Benchmarks

Desktop PC 300 W
Toaster 1200 W
Car engine 100 hp
E-bike motor 500 W
Hair dryer 1800 W
Refrigerator average 150 W

Formula

GW = MW × 0.001

Example

Example: convert 1200 megawatts to gigawatts.

1200 MW = 1.2 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: 1200 MW → 1.2 GW

Frequently Asked Questions

How much is 1200 megawatts in gigawatts?

1200 megawatts equals 1.2 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.