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