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 50 mW to GW 75 mW to GW 100 mW to GW 150 mW to GW 250 mW to GW 500 mW to GW 1,458 mW to GW 2,916 mW to GW 4,860 mW to GW
Reverse Conversions
1 GW to mW 10 GW to mW 20 GW to mW 25 GW to mW 75 GW to mW 500 GW to mW 972 GW to mW 1,000 GW to mW 1,337 GW to mW 2,916 GW to mW 4,860 GW to mW 12,150 GW to mW
More Power Conversions
1 BTU/h to W 1 kW to hp 100 kW to hp 750 hp to kW 1,000 W to BTU/h 1,000 kW to hp 1,200 W to BTU/h 1,500 hp to kW 2,500 hp to kW 10,000 hp to kW 36,000 BTU/h to kW 48,000 BTU/h to kW

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Common Benchmarks

LED bulb 10 W
Toaster 1200 W
Laptop charger 65 W
Phone fast charge 30 W
Desktop PC 300 W
Car engine 100 hp

Formula

GW = MW × 0.001

Example

Example: convert 1215 megawatts to gigawatts.

1215 MW = 1.215 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: 1215 MW → 1.215 GW

Frequently Asked Questions

How much is 1215 megawatts in gigawatts?

1215 megawatts equals 1.215 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.