Terawatts to Kilowatts Converter — TW to kW

Convert Terawatt (TW) to Kilowatt (kW) using the exact conversion factor (1 terawatt = 1,000,000,000 kilowatt). See the formula, worked examples, conversion table, history, and common uses.

Terawatts to Kilowatts converter

Converter

Engineering Converter

Convert common stress, force, torque, power, and energy units used in engineering.

Result 1 terawatt = 1,000,000,000 kilowatt
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From definition

Terawatt is 1000000000000 watt units.

To definition

Kilowatt is 1000 watt units.

Formula

Result = input x 1e+12 / 1000.

Power units are compatible.

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About Converting Terawatts to Kilowatts

Terawatt and Kilowatt both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: Terawatt is 1000000000000 watt units, and kilowatt is 1000 watt units.

Formula

kilowatts = terawatts × 1000000000

This factor comes from each unit's defined relationship to the category's base unit: 1 terawatt equals 1e+12 base units, and 1 kilowatt equals 1000 base units, so dividing one by the other gives the direct terawatt-to-kilowatt factor of 1000000000.

Simple example

1 TW × 1000000000 = 1,000,000,000 kW

1 terawatt = 1,000,000,000 kilowatts.

Real-world example

100 TW × 1000000000 = 100,000,000,000 kW

100 terawatts = 100,000,000,000 kilowatts.

Conversion table

Terawatt (TW)Kilowatt (kW)
1 TW1,000,000,000 kW
10 TW10,000,000,000 kW
50 TW50,000,000,000 kW
100 TW100,000,000,000 kW
500 TW500,000,000,000 kW
1,000 TW1e+12 kW

Reverse conversion: Kilowatt to Terawatt

1 kW × 1e-9 = 1e-9 TW

1 kilowatt = 1e-9 terawatts.

terawatts = kilowatts × 1e-9

For a page dedicated to this direction, see Kilowatt to Terawatt.

Understanding the Terawatt (TW)

Terawatt is 1000000000000 watt units.

Understanding the Kilowatt

Kilowatt (kW) measures power. A kilowatt is 1,000 watts. It is classified as a SI derived (metric prefix) unit.

Where it's used: Standard power unit worldwide for larger appliances, vehicles, and electrical systems

Uses of the Kilowatt today

  • Electric vehicle motor power ratings (alongside horsepower)
  • Household electrical system and generator capacity
  • Industrial motor and equipment power ratings

History of the Kilowatt

The kilowatt follows directly from the watt via the standard SI 'kilo-' prefix, becoming especially prominent with the growth of electrical power generation and distribution in the late 19th and 20th centuries.

Historical origin. Kilowatt was not the invention of a single named person; it developed through the process described above.

Kilowatt — sources

  • BIPM SI Brochure — SI prefixes — Defines 'kilo-' as the prefix for 10³.
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Frequently asked questions

How many kilowatts are in 1 terawatt?

1 terawatt equals 1,000,000,000 kilowatts, using the exact defined conversion factor rather than an estimate.

How do I convert terawatt to kilowatt?

Multiply the terawatt value by 1000000000. The converter above does this instantly to whatever precision you set.

How do I convert kilowatt back to terawatt?

Use the reverse factor: 1 kilowatt equals 1e-9 terawatts. You can also use the swap control in the converter above to flip the direction instantly.

What is a terawatt?

Terawatt (TW) is a unit of engineering.

What is a kilowatt?

Kilowatt (kW) measures power. A kilowatt is 1,000 watts. It is classified as a SI derived (metric prefix) unit.

Is the terawatt to kilowatt conversion exact?

Yes. Both terawatt and kilowatt are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.

Why do engineering unit conventions vary so much by region and industry?

Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.