How do you convert megawatts to terawatts?

To convert megawatts (MW) to terawatts (TW), multiply the power in megawatts by 0.000001 (terawatts = megawatts × 0.000001).

What is 5 megawatts in terawatts?

5 megawatts (5 MW) is equal to 0.000005 terawatts (0.000005 TW).

Which is larger, 1 megawatt (MW) or 1 terawatt (TW)?

One terawatt (TW) is larger than one megawatt (MW). Specifically, 1 TW equals 1,000,000 MW, while 1 MW is 0.000001 TW.

How do I convert back from terawatts (TW) to megawatts (MW)?

To reverse the calculation from TW to MW, multiply your terawatt value by the inverse factor 1,000,000 (or divide by 0.000001). 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 TW results to?

For everyday comparisons and quick estimates, rounding to 2 decimal places is usually sufficient (for example, 5 MW ≈ 0.00 TW). For engineering, laboratory, or machining specifications, select 4 or 6 decimals—or Scientific (10ⁿ) mode—in the calculator toolbar above.

Megawatts to Terawatts Converter

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

Terawatts to Megawatts (TW → MW)

Convert Megawatts to Terawatts

Enter a value in megawatts (MW) to convert to terawatts (TW).

Value (MW)

From

Result

•

0.000005terawatts

5 MW = 0.000005 TW

Result updates automatically

Get Widget

Suggested Conversions

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

[1–3] ↓

Megawatt to Terawatt Conversion Table

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

Megawatts (MW)	Terawatts (TW)
1 MW	0.000001 TW
10 MW	0.00001 TW
100 MW	0.0001 TW
1,000 MW	0.001 TW
10,000 MW	0.01 TW
100,000 MW	0.1 TW
1,000,000 MW	1 TW
5,000,000 MW	5 TW
10,000,000 MW	10 TW
25,400,000 MW	25.4 TW

How to Convert Megawatts to Terawatts

To convert megawatts to terawatts, multiply the power by the following conversion ratio: 0.000001 terawatts/megawatt.

Since one megawatt is equal to 0.000001 terawatts, you can use this simple formula to convert:

terawatts = megawatts × 0.000001

The power in terawatts is equal to the power in megawatts multiplied by 0.000001.

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

terawatts = (5 MW × 0.000001) = 0.000005 TW

How Many Terawatts Are in a Megawatt?

There are 0.000001 terawatts in a megawatt, which is why we use this value in the formula above.

1 MW = 0.000001 TW|1 TW = 1,000,000 MW

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

Megawatts and terawatts 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 Terawatt?

A terawatt is a unit of power equal to 1e+12 watts (W), the base unit for power. Equal to 10¹² Watts (1,000 GW). [2]

The terawatt is classified as an International System of Units (SI) unit of power. Terawatts can be abbreviated as TW; for example, 1 terawatt can be written as 1 TW.

In the metric system, "tera" is the standard SI prefix for trillions, or 10¹². This makes the terawatt (TW) a convenient decimal multiple of the watt (W).

In practice, terawatts (TW) are widely used across large-scale industrial, bulk, and macro-level power specifications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.

Learn more about terawatts in our Power Converter.

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

More Megawatt & Terawatt Conversions

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

Convert from Megawatts

Convert to Terawatts

Frequently Asked Questions

There are 0.000001 terawatts (TW) in 1 megawatt (MW). Conversely, 1 terawatt (TW) is equal to 1,000,000 megawatts (MW).

Power Converter

Quick Info

Direct Factor: 1 megawatt (MW) equals 0.000001 terawatts (TW).
Inverse Factor: 1 terawatt (TW) equals 1,000,000 megawatts (MW).
Formula: terawatts = megawatts × 0.000001.
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).

Terawatt (TW)

Equal to 10¹² Watts (1,000 GW).

Watt (W)

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

Related Categories

Add This Calculator to Your Site

Free HTML widget · 4 embed formats

Embed the interactive Megawatts to Terawatts converter on your blog, classroom, or documentation page.

Customize & Get Embed Code

References

NIST · BIPM · ISO

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

Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories

A–Z Directory →Sitemap

Common ConvertersEveryday metric, imperial, and US customary converters for length, weight, volume, temperature, area, pressure, energy, speed, time, and data.