A Femtofarad (fF) equals 1e-15 farad(s), a scaled unit of capacitance used for femto-scale electrical work.
Femtofarads to Rontofarads
Convert Femtofarad (fF) to Rontofarad (rF) instantly with an exact formula, conversion table, and FAQ.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Electrical calculator
Electricity Converter
Convert femtofarads (fF) to rontofarads (rF) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Rontofarad (rF) equals 1e-27 farad(s), a scaled unit of capacitance used for ronto-scale electrical work.
rF = fF × 1.000000e+12
Results update instantly for Femtofarads to Rontofarads conversions.
Reserved above the conversion cards and below the converter.
Formula
rF = fF × 1.000000e+12
fF = rF × 1.000000e-12
Conversion table
| 1 fF | 1.000000e+12 rF |
| 5 fF | 5.000000e+12 rF |
| 10 fF | 1.000000e+13 rF |
| 20 fF | 2.000000e+13 rF |
| 50 fF | 5.000000e+13 rF |
| 100 fF | 1.000000e+14 rF |
| 500 fF | 5.000000e+14 rF |
| 1000 fF | 1.000000e+15 rF |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
How the formula works
Both femtofarad and rontofarad measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtofarads by 1.000000e+12 to get rontofarads. To reverse the conversion, multiply a rontofarad value by 1.000000e-12 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 Rontofarad (rF)?
A Rontofarad (rF) equals 1e-27 farad(s), a scaled unit of capacitance used for ronto-scale electrical work.
How do I convert femtofarads to rontofarads?
Multiply the femtofarad value by 1.000000e+12 to get the equivalent in rontofarads. For example, 5 fF × 1.000000e+12 = 5.000000e+12 rF.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+12 is an exact, non-rounded value.
Can I convert rontofarads back to femtofarads?
Yes. Divide the rontofarad value by 1.000000e+12, or multiply it by 1.000000e-12, to get femtofarads.
Reserved between the FAQ and the article so the page stays balanced.
About converting femtofarads to rontofarads
A Femtofarad (fF) equals 1e-15 farad(s), a scaled unit of capacitance used for femto-scale electrical work. A Rontofarad (rF) equals 1e-27 farad(s), a scaled unit of capacitance used for ronto-scale electrical work.
Use this calculator to move between femtofarads and rontofarads accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.