A Femtofarad (fF) equals 1e-15 farad(s), a scaled unit of capacitance used for femto-scale electrical work.
Femtofarads to Ronnafarads
Convert Femtofarad (fF) to Ronnafarad (RF) instantly with an exact formula, conversion table, and FAQ.
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Convert femtofarads (fF) to ronnafarads (RF) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Ronnafarad (RF) equals 1e+27 farad(s), a scaled unit of capacitance used for ronna-scale electrical work.
RF = fF × 1.000000e-42
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Formula
RF = fF × 1.000000e-42
fF = RF × 1.000000e+42
Conversion table
| 1 fF | 1.000000e-42 RF |
| 5 fF | 5.000000e-42 RF |
| 10 fF | 1.000000e-41 RF |
| 20 fF | 2.000000e-41 RF |
| 50 fF | 5.000000e-41 RF |
| 100 fF | 1.000000e-40 RF |
| 500 fF | 5.000000e-40 RF |
| 1000 fF | 1.000000e-39 RF |
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How the formula works
Both femtofarad and ronnafarad measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtofarads by 1.000000e-42 to get ronnafarads. To reverse the conversion, multiply a ronnafarad value by 1.000000e+42 to get back to femtofarads.
Frequently asked questions
What is Femtofarad (fF)?
A Femtofarad (fF) equals 1e-15 farad(s), a scaled unit of capacitance used for femto-scale electrical work.
What is Ronnafarad (RF)?
A Ronnafarad (RF) equals 1e+27 farad(s), a scaled unit of capacitance used for ronna-scale electrical work.
How do I convert femtofarads to ronnafarads?
Multiply the femtofarad value by 1.000000e-42 to get the equivalent in ronnafarads. For example, 5 fF × 1.000000e-42 = 5.000000e-42 RF.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e-42 is an exact, non-rounded value.
Can I convert ronnafarads back to femtofarads?
Yes. Divide the ronnafarad value by 1.000000e-42, or multiply it by 1.000000e+42, to get femtofarads.
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About converting femtofarads to ronnafarads
A Femtofarad (fF) equals 1e-15 farad(s), a scaled unit of capacitance used for femto-scale electrical work. A Ronnafarad (RF) equals 1e+27 farad(s), a scaled unit of capacitance used for ronna-scale electrical work.
Use this calculator to move between femtofarads and ronnafarads accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.