Ronnaohm is 1e+27 ohm units.
Ronnaohms to Petaohms Converter — ROhm to POhm
Convert Ronnaohm (ROhm) to Petaohm (POhm) using the exact conversion factor (1 ronnaohm = 1e+12 petaohm). See the formula, worked examples, and conversion table.
Ronnaohms to Petaohms 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.
Petaohm is 1000000000000000 ohm units.
Result = input x 1e+27 / 1e+15.
Electrical units in the same family convert directly.
Reserved above the conversion cards and below the converter.
About Converting Ronnaohms to Petaohms
Ronnaohm and Petaohm 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: Ronnaohm is 1e+27 ohm units, and petaohm is 1000000000000000 ohm units.
Formula
petaohms = ronnaohms × 1e+12
This factor comes from each unit's defined relationship to the category's base unit: 1 ronnaohm equals 1e+27 base units, and 1 petaohm equals 1e+15 base units, so dividing one by the other gives the direct ronnaohm-to-petaohm factor of 1e+12.
Simple example
1 ROhm × 1e+12 = 1e+12 POhm
1 ronnaohm = 1e+12 petaohms.
Real-world example
120 ROhm × 1e+12 = 1.2e+14 POhm
120 ronnaohms = 1.2e+14 petaohms.
Conversion table
| Ronnaohm (ROhm) | Petaohm (POhm) |
|---|---|
| 1 ROhm | 1e+12 POhm |
| 5 ROhm | 5e+12 POhm |
| 12 ROhm | 1.2e+13 POhm |
| 24 ROhm | 2.4e+13 POhm |
| 120 ROhm | 1.2e+14 POhm |
| 240 ROhm | 2.4e+14 POhm |
Reverse conversion: Petaohm to Ronnaohm
1e+12 POhm × 1e-12 = 1 ROhm
1e+12 petaohms = 1 ronnaohm.
ronnaohms = petaohms × 1e-12
For a page dedicated to this direction, see Petaohm to Ronnaohm.
Understanding the Ronnaohm (ROhm)
Ronnaohm is 1e+27 ohm units.
Understanding the Petaohm (POhm)
Petaohm is 1000000000000000 ohm units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many petaohms are in 1 ronnaohm?
1 ronnaohm equals 1e+12 petaohms, using the exact defined conversion factor rather than an estimate.
How do I convert ronnaohm to petaohm?
Multiply the ronnaohm value by 1e+12. The converter above does this instantly to whatever precision you set.
How do I convert petaohm back to ronnaohm?
Use the reverse factor: 1 petaohm equals 1e-12 ronnaohms. You can also use the swap control in the converter above to flip the direction instantly.
What is a ronnaohm?
Ronnaohm (ROhm) is a unit of electricity.
What is a petaohm?
Petaohm (POhm) is a unit of electricity.
Is the ronnaohm to petaohm conversion exact?
Yes. Both ronnaohm and petaohm are defined by fixed standards rather than physical artifacts, so the factor of 1e+12 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.