Attowatt is 1e-18 watt units.
Attowatts to Picowatts Converter — aW to pW
Convert Attowatt (aW) to Picowatt (pW) using the exact conversion factor (1 attowatt = 0.000001 picowatt). See the formula, worked examples, and conversion table.
Attowatts to Picowatts 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.
Picowatt is 1e-12 watt units.
Result = input x 1e-18 / 1e-12.
Power units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Attowatts to Picowatts
Attowatt and Picowatt 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: Attowatt is 1e-18 watt units, and picowatt is 1e-12 watt units.
Formula
picowatts = attowatts × 0.000001
This factor comes from each unit's defined relationship to the category's base unit: 1 attowatt equals 1e-18 base units, and 1 picowatt equals 1e-12 base units, so dividing one by the other gives the direct attowatt-to-picowatt factor of 0.000001.
Simple example
1 aW × 0.000001 = 0.000001 pW
1 attowatt = 0.000001 picowatts.
Real-world example
100 aW × 0.000001 = 0.0001 pW
100 attowatts = 0.0001 picowatts.
Conversion table
| Attowatt (aW) | Picowatt (pW) |
|---|---|
| 1 aW | 0.000001 pW |
| 10 aW | 0.00001 pW |
| 50 aW | 0.00005 pW |
| 100 aW | 0.0001 pW |
| 500 aW | 0.0005 pW |
| 1,000 aW | 0.001 pW |
Reverse conversion: Picowatt to Attowatt
0.000001 pW × 1000000 = 1 aW
0.000001 picowatts = 1 attowatts.
attowatts = picowatts × 1000000
For a page dedicated to this direction, see Picowatt to Attowatt.
Understanding the Attowatt (aW)
Attowatt is 1e-18 watt units.
Understanding the Picowatt (pW)
Picowatt is 1e-12 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picowatts are in 1 attowatt?
1 attowatt equals 0.000001 picowatts, using the exact defined conversion factor rather than an estimate.
How do I convert attowatt to picowatt?
Multiply the attowatt value by 0.000001. The converter above does this instantly to whatever precision you set.
How do I convert picowatt back to attowatt?
Use the reverse factor: 1 picowatt equals 1,000,000 attowatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a attowatt?
Attowatt (aW) is a unit of engineering.
What is a picowatt?
Picowatt (pW) is a unit of engineering.
Is the attowatt to picowatt conversion exact?
Yes. Both attowatt and picowatt are defined by fixed standards rather than physical artifacts, so the factor of 0.000001 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.