The ohm (Ω) is the SI unit of electrical resistance, describing how strongly a material opposes current flow.
Ohms to Femtoohms
Convert Ohm (Ω) to Femtoohm (fΩ) instantly with an exact formula, conversion table, and FAQ.
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Convert ohms (Ω) to femtoohms (fΩ) instantly with formula, conversion table, and FAQ.
Context values
Some unit families need one extra value for a physically accurate result.
A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
fΩ = Ω × 1.000000e+15
Results update instantly for Ohms to Femtoohms conversions.
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Formula
fΩ = Ω × 1.000000e+15
Ω = fΩ × 1.000000e-15
Conversion table
| 1 Ω | 1.000000e+15 fΩ |
| 5 Ω | 5.000000e+15 fΩ |
| 10 Ω | 1.000000e+16 fΩ |
| 20 Ω | 2.000000e+16 fΩ |
| 50 Ω | 5.000000e+16 fΩ |
| 100 Ω | 1.000000e+17 fΩ |
| 500 Ω | 5.000000e+17 fΩ |
| 1000 Ω | 1.000000e+18 fΩ |
Related conversions
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How the formula works
Both ohm and femtoohm measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ohms by 1.000000e+15 to get femtoohms. To reverse the conversion, multiply a femtoohm value by 1.000000e-15 to get back to ohms.
Frequently asked questions
What is Ohm (Ω)?
The ohm (Ω) is the SI unit of electrical resistance, describing how strongly a material opposes current flow.
What is Femtoohm (fΩ)?
A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
How do I convert ohms to femtoohms?
Multiply the ohm value by 1.000000e+15 to get the equivalent in femtoohms. For example, 5 Ω × 1.000000e+15 = 5.000000e+15 fΩ.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+15 is an exact, non-rounded value.
Can I convert femtoohms back to ohms?
Yes. Divide the femtoohm value by 1.000000e+15, or multiply it by 1.000000e-15, to get ohms.
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About converting ohms to femtoohms
The ohm (Ω) is the SI unit of electrical resistance, describing how strongly a material opposes current flow. A Femtoohm (fΩ) equals 1e-15 ohm(s), a scaled unit of electrical resistance used for femto-scale electrical work.
Use this calculator to move between ohms and femtoohms accurately for homework, engineering, billing, or everyday electricity calculations. The Universal Converter uses exact unit factors, so results stay consistent across the site.