A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
Femtoohms to Rontoohms
Convert Femtoohm (fΩ) to Rontoohm (rΩ) instantly with an exact formula, conversion table, and FAQ.
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Convert femtoohms (fΩ) to rontoohms (rΩ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Rontoohm (rΩ) equals 1e-27 ohm(s), a scaled unit of electrical resistance used for ronto-scale electrical work.
rΩ = fΩ × 1.000000e+12
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Formula
rΩ = fΩ × 1.000000e+12
fΩ = rΩ × 1.000000e-12
Conversion table
| 1 fΩ | 1.000000e+12 rΩ |
| 5 fΩ | 5.000000e+12 rΩ |
| 10 fΩ | 1.000000e+13 rΩ |
| 20 fΩ | 2.000000e+13 rΩ |
| 50 fΩ | 5.000000e+13 rΩ |
| 100 fΩ | 1.000000e+14 rΩ |
| 500 fΩ | 5.000000e+14 rΩ |
| 1000 fΩ | 1.000000e+15 rΩ |
Related conversions
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How the formula works
Both femtoohm and rontoohm measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in femtoohms by 1.000000e+12 to get rontoohms. To reverse the conversion, multiply a rontoohm value by 1.000000e-12 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 Rontoohm (rΩ)?
A Rontoohm (rΩ) equals 1e-27 ohm(s), a scaled unit of electrical resistance used for ronto-scale electrical work.
How do I convert femtoohms to rontoohms?
Multiply the femtoohm value by 1.000000e+12 to get the equivalent in rontoohms. For example, 5 fΩ × 1.000000e+12 = 5.000000e+12 rΩ.
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 rontoohms back to femtoohms?
Yes. Divide the rontoohm value by 1.000000e+12, or multiply it by 1.000000e-12, to get femtoohms.
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About converting femtoohms to rontoohms
A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work. A Rontoohm (rΩ) equals 1e-27 ohm(s), a scaled unit of electrical resistance used for ronto-scale electrical work.
Use this calculator to move between femtoohms and rontoohms accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.