Megaohm is 1000000 ohm units.
Megaohms to Gigaohms Converter — MOhm to GOhm
Convert Megaohm (MOhm) to Gigaohm (GOhm) using the exact conversion factor (1 megaohm = 0.001 gigaohm). See the formula, worked examples, and conversion table.
Megaohms to Gigaohms 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.
Gigaohm is 1000000000 ohm units.
Result = input x 1e+6 / 1e+9.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Megaohms to Gigaohms
Megaohm and Gigaohm 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 gigaohm is 1000000000 ohm units.
Formula
gigaohms = megaohms × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 megaohm equals 1000000 base units, and 1 gigaohm equals 1000000000 base units, so dividing one by the other gives the direct megaohm-to-gigaohm factor of 0.001.
Simple example
1 MOhm × 0.001 = 0.001 GOhm
1 megaohm = 0.001 gigaohms.
Real-world example
120 MOhm × 0.001 = 0.12 GOhm
120 megaohms = 0.12 gigaohms.
Conversion table
| Megaohm (MOhm) | Gigaohm (GOhm) |
|---|---|
| 1 MOhm | 0.001 GOhm |
| 5 MOhm | 0.005 GOhm |
| 12 MOhm | 0.012 GOhm |
| 24 MOhm | 0.024 GOhm |
| 120 MOhm | 0.12 GOhm |
| 240 MOhm | 0.24 GOhm |
Reverse conversion: Gigaohm to Megaohm
0.001 GOhm × 1000 = 1 MOhm
0.001 gigaohms = 1 megaohm.
megaohms = gigaohms × 1000
For a page dedicated to this direction, see Gigaohm to Megaohm.
Understanding the Megaohm (MOhm)
Megaohm is 1000000 ohm units.
Understanding the Gigaohm (GOhm)
Gigaohm is 1000000000 ohm units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many gigaohms are in 1 megaohm?
1 megaohm equals 0.001 gigaohms, using the exact defined conversion factor rather than an estimate.
How do I convert megaohm to gigaohm?
Multiply the megaohm value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert gigaohm back to megaohm?
Use the reverse factor: 1 gigaohm equals 1,000 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 gigaohm?
Gigaohm (GOhm) is a unit of electricity.
Is the megaohm to gigaohm conversion exact?
Yes. Both megaohm and gigaohm are defined by fixed standards rather than physical artifacts, so the factor of 0.001 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.