Watts to megawatts converter
Convert watts to megawatts with an editable calculator, worked example, formula and reference table. Check the unit definitions before you convert.
Updated · How we checkUse a decimal point, such as 2.5. Enter a value in W; the result is in MW.
Formula
Worked example
Convert 1000 W to MW:
1000 W ≈ 0.001 MW
Multiply your W value by the factor above. The calculator uses the full conversion factor before rounding the displayed answer.
Watts to megawatts table
Reference values rounded to 10 significant digits. Use the converter above for other amounts.
| Watts (W) | Megawatts (MW) |
|---|---|
| 0.1 | ≈ 1e-7 |
| 0.5 | ≈ 5e-7 |
| 1 | ≈ 0.000001 |
| 2 | ≈ 0.000002 |
| 5 | ≈ 0.000005 |
| 10 | ≈ 0.00001 |
| 25 | ≈ 0.000025 |
| 50 | ≈ 0.00005 |
| 100 | ≈ 0.0001 |
| 1000 | ≈ 0.001 |
Understanding watts
A watt is one joule per second: a rate of energy transfer. Watts measure power; watt-hours measure energy accumulated over time.
Understanding megawatts
One megawatt equals one million watts or 1,000 kilowatts. Plant or generator capacity is a power rating; energy production additionally depends on runtime and output.
Precision and rounding
The calculator keeps decimal precision during the conversion. Displayed values use up to 10 significant digits; an approximation sign marks the reference results. Keep extra digits until your final measurement or purchase decision.
References
Definitions and method references. Example rates and prices on this page are editable assumptions.