Picowatt is 1e-12 watt units.
Picowatts to Terawatts Converter — pW to TW
Convert Picowatt (pW) to Terawatt (TW) using the exact conversion factor (1 picowatt = 1e-24 terawatt). See the formula, worked examples, and conversion table.
Picowatts to Terawatts converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Terawatt is 1000000000000 watt units.
Result = input x 1e-12 / 1e+12.
Power units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Picowatts to Terawatts
Picowatt and Terawatt 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: Picowatt is 1e-12 watt units, and terawatt is 1000000000000 watt units.
Formula
terawatts = picowatts × 1e-24
This factor comes from each unit's defined relationship to the category's base unit: 1 picowatt equals 1e-12 base units, and 1 terawatt equals 1e+12 base units, so dividing one by the other gives the direct picowatt-to-terawatt factor of 1e-24.
Simple example
1 pW × 1e-24 = 1e-24 TW
1 picowatt = 1e-24 terawatts.
Real-world example
100 pW × 1e-24 = 1e-22 TW
100 picowatts = 1e-22 terawatts.
Conversion table
| Picowatt (pW) | Terawatt (TW) |
|---|---|
| 1 pW | 1e-24 TW |
| 10 pW | 1e-23 TW |
| 50 pW | 5e-23 TW |
| 100 pW | 1e-22 TW |
| 500 pW | 5e-22 TW |
| 1,000 pW | 1e-21 TW |
Reverse conversion: Terawatt to Picowatt
1e-24 TW × 1e+24 = 1 pW
1e-24 terawatts = 1 picowatt.
picowatts = terawatts × 1e+24
For a page dedicated to this direction, see Terawatt to Picowatt.
Understanding the Picowatt (pW)
Picowatt is 1e-12 watt units.
Understanding the Terawatt (TW)
Terawatt is 1000000000000 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many terawatts are in 1 picowatt?
1 picowatt equals 1e-24 terawatts, using the exact defined conversion factor rather than an estimate.
How do I convert picowatt to terawatt?
Multiply the picowatt value by 1e-24. The converter above does this instantly to whatever precision you set.
How do I convert terawatt back to picowatt?
Use the reverse factor: 1 terawatt equals 1e+24 picowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a picowatt?
Picowatt (pW) is a unit of engineering.
What is a terawatt?
Terawatt (TW) is a unit of engineering.
Is the picowatt to terawatt conversion exact?
Yes. Both picowatt and terawatt are defined by fixed standards rather than physical artifacts, so the factor of 1e-24 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.