Centiwatt is 0.01 watt units.
Centiwatts to Milliwatts Converter — cW to mW
Convert Centiwatt (cW) to Milliwatt (mW) using the exact conversion factor (1 centiwatt = 10 milliwatt). See the formula, worked examples, and conversion table.
Centiwatts to Milliwatts converter
Converter
Electricity Converter
Convert electrical units by family and calculate voltage, current, resistance, power, and energy with context values.
Context values
Some unit families need one extra value for a physically accurate result.
Milliwatt is 0.001 watt units.
Result = input x 0.01 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Centiwatts to Milliwatts
Centiwatt and Milliwatt both belong to the electricity family — voltage, current, resistance, power, or energy — units that show up constantly when working across the different standards used by household wiring (120V/240V depending on region), automotive electrical systems (12V/24V), and electronics design. Specifically: Centiwatt is 0.01 watt units, and milliwatt is 0.001 watt units.
Formula
milliwatts = centiwatts × 10
This factor comes from each unit's defined relationship to the category's base unit: 1 centiwatt equals 0.01 base units, and 1 milliwatt equals 0.001 base units, so dividing one by the other gives the direct centiwatt-to-milliwatt factor of 10.
Simple example
1 cW × 10 = 10 mW
1 centiwatt = 10 milliwatts.
Real-world example
120 cW × 10 = 1,200 mW
120 centiwatts = 1,200 milliwatts.
Conversion table
| Centiwatt (cW) | Milliwatt (mW) |
|---|---|
| 1 cW | 10 mW |
| 5 cW | 50 mW |
| 12 cW | 120 mW |
| 24 cW | 240 mW |
| 120 cW | 1,200 mW |
| 240 cW | 2,400 mW |
Reverse conversion: Milliwatt to Centiwatt
10 mW × 0.1 = 1 cW
10 milliwatts = 1 centiwatt.
centiwatts = milliwatts × 0.1
For a page dedicated to this direction, see Milliwatt to Centiwatt.
Understanding the Centiwatt (cW)
Centiwatt is 0.01 watt units.
Understanding the Milliwatt (mW)
Milliwatt is 0.001 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliwatts are in 1 centiwatt?
1 centiwatt equals 10 milliwatts, using the exact defined conversion factor rather than an estimate.
How do I convert centiwatt to milliwatt?
Multiply the centiwatt value by 10. The converter above does this instantly to whatever precision you set.
How do I convert milliwatt back to centiwatt?
Use the reverse factor: 1 milliwatt equals 0.1 centiwatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a centiwatt?
Centiwatt (cW) is a unit of electricity.
What is a milliwatt?
Milliwatt (mW) is a unit of electricity.
Is the centiwatt to milliwatt conversion exact?
Yes. Both centiwatt and milliwatt are defined by fixed standards rather than physical artifacts, so the factor of 10 used above is exact to as many digits as you choose to display.
What's the difference between voltage, current, and resistance?
Voltage (volts) is the electrical potential difference driving current through a circuit. Current (amperes) is the rate of flow of electric charge. Resistance (ohms) is how much a component opposes that flow. They're related by Ohm's law (V = I × R), but they are distinct physical quantities, and this page converts between units of just one of them.