Convert Ohm circular mil per foot to Abohm-centimetres
Convert Ohm circular mil per foot (Ω·cmil/ft) to Abohm-centimetres (abΩ·cm) instantly and accurately.
Conversion Formula
abΩ·cm = Ω·cmil/ft × 166.2426113
About Ohm circular mil per foot
The ohm circular mil per foot (Ω·cmil/ft) is the US customary resistivity unit for wires and cables, equal to π×6.4516×10⁻¹⁰/(4×0.3048) Ω·m ≈ 1.66243×10⁻⁹ Ω·m. Copper has resistivity ≈1.012 Ω·cmil/ft; wire tables in NFPA 70 (NEC) and ASTM B3 list conductor resistivity in this unit. 1 Ω·cmil/ft ≈ 1.66243 nΩ·m.
About Abohm-centimetres
The abohm-centimetre (abΩ·cm) is the resistivity unit of the CGS-EMU system, equal to 10⁻⁹ Ω × 0.01 m = 10⁻¹¹ Ω·m. It appears in nineteenth-century electromagnetic analysis of telegraph cables and dynamo windings; silver, the best metallic conductor, has resistivity ≈1.59 nΩ·m = 159 abΩ·cm. 1 abΩ·cm = 10⁻¹¹ Ω·m.
Quick Reference Table
| Ohm circular mil per foot (Ω·cmil/ft) | Abohm-centimetres (abΩ·cm) |
|---|---|
| 1 Ω·cmil/ft | 166.243 abΩ·cm |
| 2 Ω·cmil/ft | 332.485 abΩ·cm |
| 5 Ω·cmil/ft | 831.213 abΩ·cm |
| 10 Ω·cmil/ft | 1662.43 abΩ·cm |
| 25 Ω·cmil/ft | 4156.07 abΩ·cm |
| 50 Ω·cmil/ft | 8312.13 abΩ·cm |
| 100 Ω·cmil/ft | 16624.3 abΩ·cm |