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Watt

Definition: The watt (symbol: W) is the SI unit of power, defined as one joule of energy per second. It measures the rate of energy transfer or conversion.

History/origin: Named in honor of the Scottish inventor James Watt for his contributions to the development of the steam engine. It was adopted by the Second Congress of the British Association for the Advancement of Science in 1889.

Current use: The watt is used globally to measure the power of household appliances (like light bulbs and vacuum cleaners) and the output of electronic devices.

Megawatt

Definition: A megawatt (symbol: MW) is a unit of power equal to one million (1,000,000) watts.

History/origin: This unit became necessary with the advent of large-scale industrialization and the construction of massive hydroelectric and thermal power stations in the early 20th century.

Current use: Megawatts are primarily used to describe the capacity of electric power plants, large container ships, and massive industrial equipment.

Watt to Megawatt Conversion Table

Watt [w]Megawatt [mw]
0.01 w0.00000001 mw
0.1 w0.0000001 mw
1 w0.000001 mw
2 w0.000002 mw
3 w0.000003 mw
5 w0.000005 mw
10 w0.00001 mw
20 w0.00002 mw
50 w0.00005 mw
100 w0.0001 mw
1000 w0.001 mw

How to Convert Watt to Megawatt

1 w = 0.000001 mw
1 mw = 1000000 w

Example: convert 15 w to mw:
15 w = 15 × 0.000001 mw = 0.000015 mw

Did You Know?

  • The Watt is named after James Watt, but ironically, he never used "Watts" to measure power during his lifetime; he primarily used horsepower!
  • Megawatts (MW) are used to measure the output of power plants. A large coal or nuclear power station typically produces around 500 to 2,000 Megawatts of electricity.
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