The ohm (Ω) is the SI unit of electrical resistance, describing how strongly a material opposes current flow.
Ohms to Rontoohms
Convert Ohm (Ω) to Rontoohm (rΩ) instantly with an exact formula, conversion table, and FAQ.
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Convert ohms (Ω) 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 = Ω × 1.000000e+27
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Formula
rΩ = Ω × 1.000000e+27
Ω = rΩ × 1.000000e-27
Conversion table
| 1 Ω | 1.000000e+27 rΩ |
| 5 Ω | 5.000000e+27 rΩ |
| 10 Ω | 1.000000e+28 rΩ |
| 20 Ω | 2.000000e+28 rΩ |
| 50 Ω | 5.000000e+28 rΩ |
| 100 Ω | 1.000000e+29 rΩ |
| 500 Ω | 5.000000e+29 rΩ |
| 1000 Ω | 1.000000e+30 rΩ |
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How the formula works
Both ohm and rontoohm measure the same physical quantity, so converting between them is a single multiplication. Multiply a value in ohms by 1.000000e+27 to get rontoohms. To reverse the conversion, multiply a rontoohm value by 1.000000e-27 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 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 ohms to rontoohms?
Multiply the ohm value by 1.000000e+27 to get the equivalent in rontoohms. For example, 5 Ω × 1.000000e+27 = 5.000000e+27 rΩ.
Is this conversion exact?
Yes. Both units use fixed, defined scale factors, so the factor 1.000000e+27 is an exact, non-rounded value.
Can I convert rontoohms back to ohms?
Yes. Divide the rontoohm value by 1.000000e+27, or multiply it by 1.000000e-27, to get ohms.
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About converting ohms to rontoohms
The ohm (Ω) is the SI unit of electrical resistance, describing how strongly a material opposes current flow. 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 ohms 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.