Deciohm is 0.1 ohm units.
Deciohms to Milliohms Converter — dOhm to mOhm
Convert Deciohm (dOhm) to Milliohm (mOhm) using the exact conversion factor (1 deciohm = 100 milliohm). See the formula, worked examples, and conversion table.
Deciohms to Milliohms 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.
Milliohm is 0.001 ohm units.
Result = input x 0.1 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Deciohms to Milliohms
Deciohm and Milliohm 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: Deciohm is 0.1 ohm units, and milliohm is 0.001 ohm units.
Formula
milliohms = deciohms × 100
This factor comes from each unit's defined relationship to the category's base unit: 1 deciohm equals 0.1 base units, and 1 milliohm equals 0.001 base units, so dividing one by the other gives the direct deciohm-to-milliohm factor of 100.
Simple example
1 dOhm × 100 = 100 mOhm
1 deciohm = 100 milliohms.
Real-world example
120 dOhm × 100 = 12,000 mOhm
120 deciohms = 12,000 milliohms.
Conversion table
| Deciohm (dOhm) | Milliohm (mOhm) |
|---|---|
| 1 dOhm | 100 mOhm |
| 5 dOhm | 500 mOhm |
| 12 dOhm | 1,200 mOhm |
| 24 dOhm | 2,400 mOhm |
| 120 dOhm | 12,000 mOhm |
| 240 dOhm | 24,000 mOhm |
Reverse conversion: Milliohm to Deciohm
100 mOhm × 0.01 = 1 dOhm
100 milliohms = 1 deciohm.
deciohms = milliohms × 0.01
For a page dedicated to this direction, see Milliohm to Deciohm.
Understanding the Deciohm (dOhm)
Deciohm is 0.1 ohm units.
Understanding the Milliohm (mOhm)
Milliohm is 0.001 ohm units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliohms are in 1 deciohm?
1 deciohm equals 100 milliohms, using the exact defined conversion factor rather than an estimate.
How do I convert deciohm to milliohm?
Multiply the deciohm value by 100. The converter above does this instantly to whatever precision you set.
How do I convert milliohm back to deciohm?
Use the reverse factor: 1 milliohm equals 0.01 deciohms. You can also use the swap control in the converter above to flip the direction instantly.
What is a deciohm?
Deciohm (dOhm) is a unit of electricity.
What is a milliohm?
Milliohm (mOhm) is a unit of electricity.
Is the deciohm to milliohm conversion exact?
Yes. Both deciohm and milliohm are defined by fixed standards rather than physical artifacts, so the factor of 100 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.