Megaohm is 1000000 ohm units.
Megaohms to Milliohms Converter — MOhm to mOhm
Convert Megaohm (MOhm) to Milliohm (mOhm) using the exact conversion factor (1 megaohm = 1,000,000,000 milliohm). See the formula, worked examples, and conversion table.
Megaohms 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 1e+6 / 0.001.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Megaohms to Milliohms
Megaohm 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: Megaohm is 1000000 ohm units, and milliohm is 0.001 ohm units.
Formula
milliohms = megaohms × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 megaohm equals 1000000 base units, and 1 milliohm equals 0.001 base units, so dividing one by the other gives the direct megaohm-to-milliohm factor of 1000000000.
Simple example
1 MOhm × 1000000000 = 1,000,000,000 mOhm
1 megaohm = 1,000,000,000 milliohms.
Real-world example
120 MOhm × 1000000000 = 120,000,000,000 mOhm
120 megaohms = 120,000,000,000 milliohms.
Conversion table
| Megaohm (MOhm) | Milliohm (mOhm) |
|---|---|
| 1 MOhm | 1,000,000,000 mOhm |
| 5 MOhm | 5,000,000,000 mOhm |
| 12 MOhm | 12,000,000,000 mOhm |
| 24 MOhm | 24,000,000,000 mOhm |
| 120 MOhm | 120,000,000,000 mOhm |
| 240 MOhm | 240,000,000,000 mOhm |
Reverse conversion: Milliohm to Megaohm
1 mOhm × 1e-9 = 1e-9 MOhm
1 milliohm = 1e-9 megaohms.
megaohms = milliohms × 1e-9
For a page dedicated to this direction, see Milliohm to Megaohm.
Understanding the Megaohm (MOhm)
Megaohm is 1000000 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 megaohm?
1 megaohm equals 1,000,000,000 milliohms, using the exact defined conversion factor rather than an estimate.
How do I convert megaohm to milliohm?
Multiply the megaohm value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert milliohm back to megaohm?
Use the reverse factor: 1 milliohm equals 1e-9 megaohms. You can also use the swap control in the converter above to flip the direction instantly.
What is a megaohm?
Megaohm (MOhm) is a unit of electricity.
What is a milliohm?
Milliohm (mOhm) is a unit of electricity.
Is the megaohm to milliohm conversion exact?
Yes. Both megaohm and milliohm 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.
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.