How do you convert megawatts to watts?

To convert megawatts (MW) to watts (W), multiply the power in megawatts by 1,000,000 (watts = megawatts × 1,000,000).

What is 5 megawatts in watts?

5 megawatts (5 MW) is equal to 5,000,000 watts (5,000,000 W).

Which is larger, 1 megawatt (MW) or 1 watt (W)?

One megawatt (MW) is larger than one watt (W). Specifically, 1 MW contains 1,000,000 W, whereas 1 W is 0.000001 MW.

How do I convert back from watts (W) to megawatts (MW)?

To reverse the calculation from W to MW, multiply your watt value by the inverse factor 0.000001 (or divide by 1,000,000). You can also click the Swap button in the tool above to flip directions in one click.

How many decimal places should I round MW to W results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 MW ≈ 5,000,000.00 W). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Megawatts to Watts Converter

Enter the power in megawatts below to convert it to watts.

Watts to Megawatts (W → MW)

Convert Megawatts to Watts

Enter a value in megawatts (MW) to convert to watts (W).

Value (MW)

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5,000,000watts

5 MW = 5,000,000 W

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Suggested Conversions

Reference:NIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))

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Megawatt to Watt Conversion Table

Table showing various megawatt measurements converted to watts. Click any preset value or arrow to load it into the converter.

Megawatts (MW)	Watts (W)
0.0000001 MW	0.1 W
0.0000002 MW	0.2 W
0.0000003 MW	0.3 W
0.0000004 MW	0.4 W
0.0000005 MW	0.5 W
0.0000006 MW	0.6 W
0.0000007 MW	0.7 W
0.0000008 MW	0.8 W
0.0000009 MW	0.9 W
0.00000001 MW	0.01 W

How to Convert Megawatts to Watts

To convert megawatts to watts, multiply the power by the following conversion ratio: 1,000,000 watts/megawatt.

Since one megawatt is equal to 1,000,000 watts, you can use this simple formula to convert:

watts = megawatts × 1,000,000

The power in watts is equal to the power in megawatts multiplied by 1,000,000.

For example, here's how to convert 5 megawatts to watts using the formula above.

watts = (5 MW × 1,000,000) = 5,000,000 W

How Many Watts Are in a Megawatt?

There are 1,000,000 watts in a megawatt, which is why we use this value in the formula above.

1 MW = 1,000,000 W|1 W = 0.000001 MW

Our megawatt to watt calculator automatically converts your power measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Megawatts and watts are both units used to measure power. Keep reading to learn more about each unit.

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). [1]

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.

Learn more about megawatts in our Power Converter.

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. [2]

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.

Learn more about watts in our Power Converter.

When converting power between megawatts (MW) and watts (W), keep full floating-point precision (1 MW = 1,000,000 W; 1 W = 0.000001 MW) during intermediate calculations and round only the final watt figure to match your instrument tolerance.

More Megawatt & Watt Conversions

Need to calculate in the opposite direction? Use our watts to megawatts calculator to switch your starting unit immediately. You can also explore related tools such as converting watts to megawatts, converting horsepower (hp) to watts, or converting btu/hr to watts.

Convert from Megawatts

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Frequently Asked Questions

There are 1,000,000 watts (W) in 1 megawatt (MW). Conversely, 1 watt (W) is equal to 0.000001 megawatts (MW).

Power Converter

Quick Info

Direct Factor: 1 megawatt (MW) equals 1,000,000 watts (W).
Inverse Factor: 1 watt (W) equals 0.000001 megawatts (MW).
Formula: watts = megawatts × 1,000,000.
Verified Precision: Anchored to official NIST SP 811 and ISO/IEC 80000 standards.

Units Comparison

Megawatt (MW)

Equal to 1,000,000 Watts (1,000 kW).

Watt (W)

Coherent SI unit of power equal to 1 Joule per second (1 J/s).

Kilowatt (kW)

Equal to 1,000 Watts (1 kJ/s).

References

[1]NIST SP 811 · NIST SP 811 App. B.9 (Power & Radiant Flux)
Source
[2]NIST CUU · Derived SI Unit: Watt (W)
Source
[3]BIPM · SI Brochure (9th Ed.) — Power
Source

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References

NIST · BIPM · ISO

[1]
NIST SP 811 (NIST SP 811 App. B.9 (Power & Radiant Flux))·Power Metrology Standard — Megawatts (MW) to Watts (W)
NIST SP 811 Standard
[2]
NIST CUU (Derived SI Unit: Watt (W))·Unit Specifications: Megawatt (MW) & Watt (W)
NIST CUU Specification
[3]
BIPM (SI Brochure (9th Ed.) — Power)·Conversion Factors & Mathematical Basis (MW to W)
BIPM Reference

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