Milliwatt is 0.001 watt units.
Milliwatts to Decawatts Converter — mW to daW
Convert Milliwatt (mW) to Decawatt (daW) using the exact conversion factor (1 milliwatt = 0.0001 decawatt). See the formula, worked examples, and conversion table.
Milliwatts to Decawatts 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.
Decawatt is 10 watt units.
Result = input x 0.001 / 10.
Power units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Milliwatts to Decawatts
Milliwatt and Decawatt 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: Milliwatt is 0.001 watt units, and decawatt is 10 watt units.
Formula
decawatts = milliwatts × 0.0001
This factor comes from each unit's defined relationship to the category's base unit: 1 milliwatt equals 0.001 base units, and 1 decawatt equals 10 base units, so dividing one by the other gives the direct milliwatt-to-decawatt factor of 0.0001.
Simple example
1 mW × 0.0001 = 0.0001 daW
1 milliwatt = 0.0001 decawatts.
Real-world example
100 mW × 0.0001 = 0.01 daW
100 milliwatts = 0.01 decawatts.
Conversion table
| Milliwatt (mW) | Decawatt (daW) |
|---|---|
| 1 mW | 0.0001 daW |
| 10 mW | 0.001 daW |
| 50 mW | 0.005 daW |
| 100 mW | 0.01 daW |
| 500 mW | 0.05 daW |
| 1,000 mW | 0.1 daW |
Reverse conversion: Decawatt to Milliwatt
0.0001 daW × 10000 = 1 mW
0.0001 decawatts = 1 milliwatt.
milliwatts = decawatts × 10000
For a page dedicated to this direction, see Decawatt to Milliwatt.
Understanding the Milliwatt (mW)
Milliwatt is 0.001 watt units.
Understanding the Decawatt (daW)
Decawatt is 10 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many decawatts are in 1 milliwatt?
1 milliwatt equals 0.0001 decawatts, using the exact defined conversion factor rather than an estimate.
How do I convert milliwatt to decawatt?
Multiply the milliwatt value by 0.0001. The converter above does this instantly to whatever precision you set.
How do I convert decawatt back to milliwatt?
Use the reverse factor: 1 decawatt equals 10,000 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 engineering.
What is a decawatt?
Decawatt (daW) is a unit of engineering.
Is the milliwatt to decawatt conversion exact?
Yes. Both milliwatt and decawatt are defined by fixed standards rather than physical artifacts, so the factor of 0.0001 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.