Deciwatt is 0.1 watt units.
Deciwatts to Rontowatts Converter — dW to rW
Convert Deciwatt (dW) to Rontowatt (rW) using the exact conversion factor (1 deciwatt = 1e+26 rontowatt). See the formula, worked examples, and conversion table.
Deciwatts to Rontowatts 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.
Rontowatt is 1e-27 watt units.
Result = input x 0.1 / 1e-27.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Deciwatts to Rontowatts
Deciwatt and Rontowatt 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: Deciwatt is 0.1 watt units, and rontowatt is 1e-27 watt units.
Formula
rontowatts = deciwatts × 1e+26
This factor comes from each unit's defined relationship to the category's base unit: 1 deciwatt equals 0.1 base units, and 1 rontowatt equals 1e-27 base units, so dividing one by the other gives the direct deciwatt-to-rontowatt factor of 1e+26.
Simple example
1 dW × 1e+26 = 1e+26 rW
1 deciwatt = 1e+26 rontowatts.
Real-world example
120 dW × 1e+26 = 1.2e+28 rW
120 deciwatts = 1.2e+28 rontowatts.
Conversion table
| Deciwatt (dW) | Rontowatt (rW) |
|---|---|
| 1 dW | 1e+26 rW |
| 5 dW | 5e+26 rW |
| 12 dW | 1.2e+27 rW |
| 24 dW | 2.4e+27 rW |
| 120 dW | 1.2e+28 rW |
| 240 dW | 2.4e+28 rW |
Reverse conversion: Rontowatt to Deciwatt
1e+26 rW × 1e-26 = 1 dW
1e+26 rontowatts = 1 deciwatt.
deciwatts = rontowatts × 1e-26
For a page dedicated to this direction, see Rontowatt to Deciwatt.
Understanding the Deciwatt (dW)
Deciwatt is 0.1 watt units.
Understanding the Rontowatt (rW)
Rontowatt is 1e-27 watt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many rontowatts are in 1 deciwatt?
1 deciwatt equals 1e+26 rontowatts, using the exact defined conversion factor rather than an estimate.
How do I convert deciwatt to rontowatt?
Multiply the deciwatt value by 1e+26. The converter above does this instantly to whatever precision you set.
How do I convert rontowatt back to deciwatt?
Use the reverse factor: 1 rontowatt equals 1e-26 deciwatts. You can also use the swap control in the converter above to flip the direction instantly.
What is a deciwatt?
Deciwatt (dW) is a unit of electricity.
What is a rontowatt?
Rontowatt (rW) is a unit of electricity.
Is the deciwatt to rontowatt conversion exact?
Yes. Both deciwatt and rontowatt are defined by fixed standards rather than physical artifacts, so the factor of 1e+26 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.