Watts to Megawatts Converter
Convert watt to megawatt instantly. 1 W = 0.000001 MW, worked steps and a full reference table.
How to use it
- Type the value in watt — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 W | 0.000001 MW |
| 5 W | 0.000005 MW |
| 10 W | 0.00001 MW |
| 100 W | 0.0001 MW |
One watt equals 1.0000e-6 megawatts (MW). To convert watts to megawatts, multiply by 1.0000e-6; to go back the other way, multiply by 1000000 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What watts and megawatts actually measure
Watt (W) — The watt is the SI unit of power — one joule per second. Light bulbs, appliances, audio equipment and solar panels.
Megawatt (MW) — A megawatt is a million watts. Wind turbines, data centres and small power stations.
Watts to Megawatts conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| W | MW |
|---|---|
| 1 W | 1.0000e-6 MW |
| 2 W | 2.0000e-6 MW |
| 5 W | 5.0000e-6 MW |
| 10 W | 1.0000e-5 MW |
| 25 W | 2.5000e-5 MW |
| 50 W | 5.0000e-5 MW |
| 100 W | 0.0001 MW |
How to convert watts to megawatts by hand
Multiply the number of watts by 1.0000e-6.
For example, 25 W × 1.0000e-6 = 2.5000e-5 MW.
Going the other way, divide by 1.0000e-6 — or multiply by 1000000, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many MW are in 1 W?
1 W equals exactly 0.000001 MW. Multiply any value in watt by 0.000001 to get megawatt.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026