How to convert watts to megawatts
MW = W × 0.000001Multiply the value in watts by 0.000001. To go the other way, multiply by 1,000,000 (or divide by 0.000001).
A watt is smaller than a megawatt: it takes 1,000,000 watts to make one megawatt.
Worked examples
- 1 watt1 W × 0.000001 = 0.000001 MW
- 5 watts5 W × 0.000001 = 0.000005 MW
- 10 watts10 W × 0.000001 = 0.00001 MW
- 20 watts20 W × 0.000001 = 0.00002 MW
- 100 watts100 W × 0.000001 = 0.0001 MW
Watts to megawatts conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Watts (W) | Megawatts (MW) |
|---|---|
| 0.1 W | 1×10⁻⁷ MW |
| 0.25 W | 2.5×10⁻⁷ MW |
| 0.5 W | 5×10⁻⁷ MW |
| 1 W | 0.000001 MW |
| 2 W | 0.000002 MW |
| 3 W | 0.000003 MW |
| 4 W | 0.000004 MW |
| 5 W | 0.000005 MW |
| 6 W | 0.000006 MW |
| 7 W | 0.000007 MW |
| 8 W | 0.000008 MW |
| 9 W | 0.000009 MW |
| 10 W | 0.00001 MW |
| Watts (W) | Megawatts (MW) |
|---|---|
| 12 W | 0.000012 MW |
| 15 W | 0.000015 MW |
| 20 W | 0.00002 MW |
| 25 W | 0.000025 MW |
| 30 W | 0.00003 MW |
| 40 W | 0.00004 MW |
| 50 W | 0.00005 MW |
| 75 W | 0.000075 MW |
| 100 W | 0.0001 MW |
| 250 W | 0.00025 MW |
| 500 W | 0.0005 MW |
| 1,000 W | 0.001 MW |
About the units
Watt (W)
The SI unit of power: one joule per second. An LED bulb draws around 10 W, a microwave about 1,000 W.
Megawatt (MW)
One million watts; used for power plants and wind turbines (a modern onshore turbine is 3–6 MW). One megawatt equals 1,000,000 watts (W).
Frequently asked questions
How many megawatts are in one watt?
There are 0.000001 megawatts in one watt, and this value is exact by definition.
How do I convert watts to megawatts?
Multiply the number of watts by 0.000001. For example, 10 W × 0.000001 = 0.00001 MW.
How many watts are in one megawatt?
One megawatt equals 1,000,000 watts. That is the reverse factor, 1 ÷ 0.000001.
What is 10 watts in megawatts?
10 W = 0.00001 MW.
Is this W to MW converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.