Convert Abohms to Ohms
Convert Abohms (abΩ) to Ohms (Ω) instantly and accurately.
Conversion Formula
Ω = abΩ × 1.000000000e-9
About Abohms
The abohm (abΩ) is the resistance unit of the CGS-EMU system, defined as 1 abvolt per abampere = 10⁻⁸ V / 10 A = 10⁻⁹ Ω, exactly equal to 1 nΩ. It appears in nineteenth- and early-twentieth-century electromagnetic engineering texts for low-resistance measurements of copper conductors, motor windings, and cable joints. 1 abΩ = 10⁻⁹ Ω = 1 nΩ.
About Ohms
The ohm (Ω) is the SI derived unit of electrical resistance, equal to 1 volt per ampere (1 V/A = 1 kg·m²·A⁻²·s⁻³), named after Georg Simon Ohm who published V = IR in 1827. Common benchmarks: a standard earphone is 32 Ω, a coaxial cable has 50 or 75 Ω characteristic impedance, and a typical carbon-film resistor spans 1 Ω to 10 MΩ. The ohm is realised internationally via the quantum Hall resistance standard Rₖ = h/e² ≈ 25 812.807 Ω.
Quick Reference Table
| Abohms (abΩ) | Ohms (Ω) |
|---|---|
| 1 abΩ | 1 × 10-9 Ω |
| 2 abΩ | 2 × 10-9 Ω |
| 5 abΩ | 5 × 10-9 Ω |
| 10 abΩ | 1 × 10-8 Ω |
| 25 abΩ | 2.5 × 10-8 Ω |
| 50 abΩ | 5 × 10-8 Ω |
| 100 abΩ | 1 × 10-7 Ω |