A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
Femtoohms to Ronnaohms
Convert Femtoohm (fΩ) to Ronnaohm (RΩ) instantly with an exact formula, conversion table, and FAQ.
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Convert femtoohms (fΩ) to ronnaohms (RΩ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Ronnaohm (RΩ) equals 1e+27 ohm(s), a scaled unit of electrical resistance used for ronna-scale electrical work.
RΩ = fΩ × 1.000000e-42
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Formula
RΩ = fΩ × 1.000000e-42
fΩ = RΩ × 1.000000e+42
Conversion table
| 1 fΩ | 1.000000e-42 RΩ |
| 5 fΩ | 5.000000e-42 RΩ |
| 10 fΩ | 1.000000e-41 RΩ |
| 20 fΩ | 2.000000e-41 RΩ |
| 50 fΩ | 5.000000e-41 RΩ |
| 100 fΩ | 1.000000e-40 RΩ |
| 500 fΩ | 5.000000e-40 RΩ |
| 1000 fΩ | 1.000000e-39 RΩ |
Related conversions
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How the formula works
Both femtoohm and ronnaohm measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtoohms by 1.000000e-42 to get ronnaohms. To reverse the conversion, multiply a ronnaohm value by 1.000000e+42 to get back to femtoohms.
Frequently asked questions
What is Femtoohm (fΩ)?
A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
What is Ronnaohm (RΩ)?
A Ronnaohm (RΩ) equals 1e+27 ohm(s), a scaled unit of electrical resistance used for ronna-scale electrical work.
How do I convert femtoohms to ronnaohms?
Multiply the femtoohm value by 1.000000e-42 to get the equivalent in ronnaohms. For example, 5 fΩ × 1.000000e-42 = 5.000000e-42 RΩ.
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 ronnaohms back to femtoohms?
Yes. Divide the ronnaohm value by 1.000000e-42, or multiply it by 1.000000e+42, to get femtoohms.
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About converting femtoohms to ronnaohms
A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work. A Ronnaohm (RΩ) equals 1e+27 ohm(s), a scaled unit of electrical resistance used for ronna-scale electrical work.
Use this calculator to move between femtoohms and ronnaohms accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.