UTILLAB
Home
About
Β© Copyright 2026Β UtilLab
About usPrivacy Policy

Watt [W] to Megawatt [MW] Converter

Quick Reference

1 Watt (W) = 1.0000e-6 Megawatt (MW)

1 Megawatt (MW) = 1000000 Watt (W)

How to Convert Watt to Megawatt

1 W = 0.000001 MW
1 MW = 1000000 W

To convert Watt to Megawatt, divide the value by 1000000 (equivalently, multiply by 1.0000e-6). To convert Megawatt back to Watt, multiply by 1000000.

Example: convert 10 W to MW:
10 W = 10 x 0.000001 = 0.000009999999999999999 MW

↔ Convert Megawatt to Watt

Watt

Definition: The watt (W) is the derived unit of power in the International System of Units (SI). It is defined as one joule per second and represents the rate at which energy is transferred or converted.

History/origin: The watt is named in honor of Scottish inventor James Watt, who significantly improved the steam engine. The unit was adopted by the Second Congress of the British Association for the Advancement of Science in 1882.

Current use: Watts are used universally to measure power consumption and generation in electrical and mechanical systems. It is a fundamental unit for specifying the power rating of appliances, light bulbs, and engines.

Megawatt

Definition: A megawatt (MW) is a unit of power equal to one million (10⁢) watts. It is a multiple of the base unit, the watt, in the International System of Units (SI).

History/origin: The watt is named in honor of Scottish inventor James Watt. The megawatt, as a decimal multiple of the watt, was derived as a larger unit for measuring very large amounts of power.

Current use: Megawatts are used to measure the power output of power plants, large industrial facilities, and the power consumption of cities. It is a convenient unit for expressing the scale of power generation and consumption on a large scale.

Watt to Megawatt Conversion Table

Watt [W]Megawatt [MW]
1 W0.000001 MW
2 W0.000002 MW
5 W0.000005 MW
10 W0.00001 MW
20 W0.00002 MW
50 W0.00005 MW
100 W0.0001 MW
200 W0.0002 MW
500 W0.0005 MW
1000 W0.001 MW

Common pairs of Power

Watt

Watt to MilliwattWatt to KilowattWatt to MegawattWatt to Gigawatt

Milliwatt

Milliwatt to WattMilliwatt to KilowattMilliwatt to MegawattMilliwatt to Gigawatt

Kilowatt

Kilowatt to WattKilowatt to MilliwattKilowatt to MegawattKilowatt to Gigawatt

Megawatt

Megawatt to WattMegawatt to MilliwattMegawatt to KilowattMegawatt to Gigawatt

Gigawatt

Gigawatt to WattGigawatt to MilliwattGigawatt to KilowattGigawatt to Megawatt

Watt [W] to Megawatt [MW] Converter

To convert Watt to Megawatt, enter your value in the W field above and the result in MW will appear instantly. You can also use the conversion factor shown in the table on this page to calculate manually. The formula is always the same: multiply your W value by the fixed conversion ratio to get the equivalent in MW.
Our Watt to Megawatt converter uses standardized conversion factors defined by international scientific and metrological organizations. All calculations are performed with full floating-point precision. You can also choose how many decimal places to display in the result, so you get exactly the level of detail you need.
Yes, absolutely. Simply swap the source and destination units in the converter β€” select MW as your input unit and W as your output unit. The same precision and standardized conversion factor applies in both directions.
Converting between Watt and Megawatt comes up regularly in engineering, scientific research, construction, and everyday tasks that involve measurements from different unit systems. Our converter eliminates the risk of manual calculation errors and saves time whenever you need to switch between these two units.
Yes, the Watt to Megawatt converter is completely free. No account or registration is required, and there are no usage limits. It works on any device β€” smartphones, tablets, and desktop computers β€” directly in your browser.
Watt and Megawatt are both units used to measure the same physical quantity, but they belong to different measurement systems or represent different scales. The mathematical relationship between them is fixed and constant, which is what makes accurate conversion possible. Scroll up to see the exact conversion factor, formula, and a reference table for common values.