Milliwatt is 0.001 watt units.
Milliwatts to Picowatts Converter — mW to pW
Convert Milliwatt (mW) to Picowatt (pW) using the exact conversion factor (1 milliwatt = 1,000,000,000 picowatt). See the formula, worked examples, and conversion table.
Milliwatts to Picowatts converter
Converter
Power Converter
Convert watts, horsepower, refrigeration tons, BTU per hour, and engineering power units.
Context values
Some unit families need one extra value for a physically accurate result.
Picowatt is 1e-12 watt units.
Result = input x 0.001 / 1e-12.
Power uses the watt as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Milliwatts to Picowatts
Milliwatt and Picowatt both describe power output, and the conversion is a routine part of comparing an engine or motor's spec sheet across countries that use different power units. Specifically: Milliwatt is 0.001 watt units, and picowatt is 1e-12 watt units.
Formula
picowatts = milliwatts × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 milliwatt equals 0.001 base units, and 1 picowatt equals 1e-12 base units, so dividing one by the other gives the direct milliwatt-to-picowatt factor of 1000000000.
Simple example
1 mW × 1000000000 = 1,000,000,000 pW
1 milliwatt = 1,000,000,000 picowatts.
Real-world example
100 mW × 1000000000 = 100,000,000,000 pW
100 milliwatts = 100,000,000,000 picowatts.
Conversion table
| Milliwatt (mW) | Picowatt (pW) |
|---|---|
| 1 mW | 1,000,000,000 pW |
| 10 mW | 10,000,000,000 pW |
| 100 mW | 100,000,000,000 pW |
| 500 mW | 500,000,000,000 pW |
| 1,000 mW | 1e+12 pW |
| 5,000 mW | 5e+12 pW |
Reverse conversion: Picowatt to Milliwatt
1 pW × 1e-9 = 1e-9 mW
1 picowatt = 1e-9 milliwatts.
milliwatts = picowatts × 1e-9
For a page dedicated to this direction, see Picowatt to Milliwatt.
Understanding the Milliwatt (mW)
Milliwatt is 0.001 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 milliwatt?
1 milliwatt equals 1,000,000,000 picowatts, using the exact defined conversion factor rather than an estimate.
How do I convert milliwatt to picowatt?
Multiply the milliwatt value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert picowatt back to milliwatt?
Use the reverse factor: 1 picowatt equals 1e-9 milliwatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a milliwatt?
Milliwatt (mW) is a unit of power.
What is a picowatt?
Picowatt (pW) is a unit of power.
Is the milliwatt to picowatt conversion exact?
Yes. Both milliwatt and picowatt 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.