Rontovolt is 1e-27 volt units.
Rontovolts to Femtovolts Converter — rV to fV
Convert Rontovolt (rV) to Femtovolt (fV) using the exact conversion factor (1 rontovolt = 1e-12 femtovolt). See the formula, worked examples, and conversion table.
Rontovolts to Femtovolts 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.
Femtovolt is 1e-15 volt 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 Rontovolts to Femtovolts
Rontovolt and Femtovolt 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: Rontovolt is 1e-27 volt units, and femtovolt is 1e-15 volt units.
Formula
femtovolts = rontovolts × 1e-12
This factor comes from each unit's defined relationship to the category's base unit: 1 rontovolt equals 1e-27 base units, and 1 femtovolt equals 1e-15 base units, so dividing one by the other gives the direct rontovolt-to-femtovolt factor of 1e-12.
Simple example
1 rV × 1e-12 = 1e-12 fV
1 rontovolt = 1e-12 femtovolts.
Real-world example
120 rV × 1e-12 = 1.2e-10 fV
120 rontovolts = 1.2e-10 femtovolts.
Conversion table
| Rontovolt (rV) | Femtovolt (fV) |
|---|---|
| 1 rV | 1e-12 fV |
| 5 rV | 5e-12 fV |
| 12 rV | 1.2e-11 fV |
| 24 rV | 2.4e-11 fV |
| 120 rV | 1.2e-10 fV |
| 240 rV | 2.4e-10 fV |
Reverse conversion: Femtovolt to Rontovolt
1e-12 fV × 1e+12 = 1 rV
1e-12 femtovolts = 1 rontovolt.
rontovolts = femtovolts × 1e+12
For a page dedicated to this direction, see Femtovolt to Rontovolt.
Understanding the Rontovolt (rV)
Rontovolt is 1e-27 volt units.
Understanding the Femtovolt (fV)
Femtovolt is 1e-15 volt units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtovolts are in 1 rontovolt?
1 rontovolt equals 1e-12 femtovolts, using the exact defined conversion factor rather than an estimate.
How do I convert rontovolt to femtovolt?
Multiply the rontovolt value by 1e-12. The converter above does this instantly to whatever precision you set.
How do I convert femtovolt back to rontovolt?
Use the reverse factor: 1 femtovolt equals 1e+12 rontovolts. You can also use the swap control in the converter above to flip the direction instantly.
What is a rontovolt?
Rontovolt (rV) is a unit of electricity.
What is a femtovolt?
Femtovolt (fV) is a unit of electricity.
Is the rontovolt to femtovolt conversion exact?
Yes. Both rontovolt and femtovolt 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.