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Power and Energy

WtoMW

Convert watts (W) to megawatts (MW).

Factor1 W = 1e-6 MW

Converter

W

Accepts numbers or expressions, e.g. 150 + 14.7

Result
1MW

Rendered to 6 significant figures.

Formula

Formula
MW = W × 1e-6

Multiply any value in watts by 1e-6 to obtain the value in megawatts.

Worked example

Convert 1.00000e+6 W to MW.

  1. 01Start with 1.00000e+6 W.
  2. 02Multiply by the conversion factor: 1.00000e+6 × 1e-6 = 1 MW.
Result1.00000e+6 W = 1 MW

Conversion table

WMW
11e-6
22e-6
55e-6
101e-5
202e-5
505e-5
1000.0001
2000.0002
5000.0005
10000.001

Reference values rounded to 5 significant figures for display.

FAQ

What is the conversion factor from W to MW?
1 W equals 1e-6 MW. To convert, multiply the value in watts by 1e-6.
How do I convert 1 W to MW?
1 W = 1e-6 MW. For any value, multiply by 1e-6.
How do I convert MW back to W?
Divide by the same factor — or equivalently, multiply by 1000000. So 1 MW = 1.00000e+6 W.
When would I need to convert watt to megawatt?
Power conversions are common when comparing motor ratings (often kW or hp), thermal duty (BTU/hr or kW), and utility consumption in mixed-unit projects.
Is the conversion exact?
Yes. Both W and MW are defined by exact SI relationships, so the displayed factor is exact (any rounding shown is only for display).

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