MW to Watts Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert MW to watts, multiply by 1,000,000. For example, 10 MW is 10,000,000 W. One megawatt equals 1,000,000 W.

Use the MW to Watts Converter

MW to Watts formula and what each symbol means

W = MW × 1,000,000

Symbols used in the formula
SymbolMeaning
MWMegawatt
WWatt

MW to Watts examples

1 MW

1 MW × 1,000,000 = 1,000,000 W.

10 MW

10 MW × 1,000,000 = 10,000,000 W.

100 MW

100 MW × 1,000,000 = 100,000,000 W.

MW compared with Watts

One MW is 1,000,000 times as large as one W, so your number gets bigger when you convert MW to watts and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

About MW and watts

Megawatt (MW): One million watts. Watt (W): The SI unit of power, one joule per second.

Where MW to watts conversions are used

Power stations and the grid are described in megawatts and gigawatts. Engines and motors are rated in kilowatts or horsepower, depending on the market.

How to calculate MW to Watts step by step

  1. Enter the value in MW (the starting unit).
  2. Multiply by 1,000,000, because 1 MW = 1,000,000 W.
  3. The product is the value in W. To go back, divide by 1,000,000 or multiply by 0.000001.

Popular power conversions

How to read your MW to Watts result

Power is energy per time.

MWWATTS
11,000,000
22,000,000
55,000,000
1010,000,000
2020,000,000
5050,000,000
100100,000,000
1,0001,000,000,000

Watts to MW: quick table

WATTSMW
10.000001
50.000005
100.00001
250.000025
500.00005
1000.0001
2500.00025
5000.0005

Common mistakes when calculating MW to Watts

  • Using Btu/h for heating loads without noting that 1 ton of refrigeration is 12,000 Btu/h.
  • Dividing when you should multiply: from MW to W multiply by 1,000,000; from W to MW divide by 1,000,000.

MW to Watts FAQ

How many W are in 1 MW?

1 MW equals 1,000,000 W.

How many MW are in 1 W?

1 W equals 0.000001 MW.

Is 1 MW = 1,000,000 W an exact conversion?

The factor is shown rounded to 7 significant figures (1,000,000). The calculator above uses more digits.

What is a megawatt (MW)?

One million watts.

How can I estimate MW to watts in my head?

One MW is 1,000,000 times as large as one W, so your number gets bigger when you convert MW to watts and smaller when you convert back. If the answer is not larger than what you typed, you divided instead of multiplying.

What is 500 MW in watts?

500 MW = 500,000,000 W (since 500 × 1,000,000).

What is 15 MW in watts?

15 MW = 15,000,000 W (since 15 × 1,000,000).

What is 75 MW in watts?

75 MW = 75,000,000 W (since 75 × 1,000,000).

How many decimals should I keep when converting MW to W?

Match the precision of your original measurement. For example, 10,000,000 W rounds to 10,000,000 W at 3 significant figures; keep more digits only for engineering or scientific work.

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Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors