Power Converter

Convert between watts and other practical power units.

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Related Conversions
1 mW to GW 5 mW to GW 20 mW to GW 25 mW to GW 75 mW to GW 100 mW to GW 743 mW to GW 750 mW to GW 810 mW to GW 1,080 mW to GW 1,620 mW to GW 13,500 mW to GW
Reverse Conversions
1 GW to mW 20 GW to mW 25 GW to mW 100 GW to mW 150 GW to mW 200 GW to mW 540 GW to mW 750 GW to mW 810 GW to mW 1,000 GW to mW 1,350 GW to mW 2,700 GW to mW
More Power Conversions
10 MW to kW 10 kW to hp 75 W to BTU/h 300 hp to kW 500 kW to hp 1,000 BTU/h to W 1,000 hp to kW 2,000 W to BTU/h 4,000 hp to kW 5,000 hp to kW 24,000 BTU/h to kW 60,000 BTU/h to kW

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Common Benchmarks

Refrigerator average 150 W
Microwave 1000 W
Electric kettle 1500 W
Phone fast charge 30 W
LED bulb 10 W
Car engine 100 hp

Formula

GW = MW × 0.001

Example

Example: convert 675 megawatts to gigawatts.

675 MW = 0.675 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: 675 MW → 0.675 GW

Frequently Asked Questions

How much is 675 megawatts in gigawatts?

675 megawatts equals 0.675 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.