Watts to Megawatts Converter
Enter the power in watts below to convert it to megawatts.
Convert Watts to Megawatts
Enter a value in watts (W) to convert to megawatts (MW).
Watt to Megawatt Conversion Table
Table showing various watt measurements converted to megawatts. Click any preset value or arrow to load it into the converter.
| Watts (W) | Megawatts (MW) |
|---|---|
| 1 W | 0.000001 MW |
| 10 W | 0.00001 MW |
| 100 W | 0.0001 MW |
| 1,000 W | 0.001 MW |
| 10,000 W | 0.01 MW |
| 100,000 W | 0.1 MW |
| 1,000,000 W | 1 MW |
| 5,000,000 W | 5 MW |
| 10,000,000 W | 10 MW |
| 25,400,000 W | 25.4 MW |
How to Convert Watts to Megawatts
To convert watts to megawatts, multiply the power by the following conversion ratio: 0.000001 megawatts/watt.
Since one watt is equal to 0.000001 megawatts, you can use this simple formula to convert:
The power in megawatts is equal to the power in watts multiplied by 0.000001.
For example, here's how to convert 5 watts to megawatts using the formula above.
How Many Megawatts Are in a Watt?
There are 0.000001 megawatts in a watt, which is why we use this value in the formula above.
Our watt to megawatt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Watts and megawatts are both units used to measure power. Keep reading to learn more about each unit.
What Is a Watt?
Coherent SI unit of power equal to 1 Joule per second (1 J/s). It serves as a primary reference unit for measuring power across scientific and practical applications. [1]
The watt is classified as an International System of Units (SI) unit of power. Watts can be abbreviated as W; for example, 1 watt can be written as 1 W.
As the primary coherent reference unit for power in this category, all other power units are mathematically anchored to the watt (W).
In practice, watts (W) are widely used across standard power applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
What Is a Megawatt?
A megawatt is a unit of power equal to 1,000,000 watts (W), the base unit for power. Equal to 1,000,000 Watts (1,000 kW). [2]
The megawatt is classified as a metric and SI-compatible unit of power. Megawatts can be abbreviated as MW; for example, 1 megawatt can be written as 1 MW.
In the metric system, "mega" is the standard SI prefix for millions, or 10⁶. This makes the megawatt (MW) a convenient decimal multiple of the watt (W).
In practice, megawatts (MW) are widely used across large-scale industrial, bulk, and macro-level power specifications within SI metric workflows, engineering documentation, and technical data sheets.
When converting power between watts (W) and megawatts (MW), keep full floating-point precision (1 W = 0.000001 MW; 1 MW = 1,000,000 W) during intermediate calculations and round only the final megawatt figure to match your instrument tolerance.
More Watt & Megawatt Conversions
Need to calculate in the opposite direction? Use our megawatts to watts calculator to switch your starting unit immediately. You can also explore related tools such as converting megawatts to watts, converting watts to horsepower (hp), or converting watts to kilowatts.
Frequently Asked Questions
References
- [1]NIST SP 811 StandardNIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Watts (W) to Megawatts (MW)
- [2]NIST CUU SpecificationNIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Watt (W) & Megawatt (MW)
- [3]BIPM ReferenceBIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (W to MW)