Convert Ohm circular mil per foot to Milliohm-centimetres
Convert Ohm circular mil per foot (Ω·cmil/ft) to Milliohm-centimetres (mΩ·cm) instantly and accurately.
Conversion Formula
mΩ·cm = Ω·cmil/ft × 0.0001662426113
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 Milliohm-centimetres
The milliohm-centimetre (mΩ·cm) equals 10⁻⁵ Ω·m, a scale used for poorly conducting alloys and heavily doped semiconductors at low temperature. Graphite perpendicular to the basal plane has resistivity around 3-10 mΩ·cm; hot-pressed sintered tungsten carbide compacts are 0.2-0.5 mΩ·cm; heavily B-doped silicon at degeneracy is ∼0.1 mΩ·cm. 1 mΩ·cm = 10⁻⁵ Ω·m.
Quick Reference Table
| Ohm circular mil per foot (Ω·cmil/ft) | Milliohm-centimetres (mΩ·cm) |
|---|---|
| 1 Ω·cmil/ft | 0.000166243 mΩ·cm |
| 2 Ω·cmil/ft | 0.000332485 mΩ·cm |
| 5 Ω·cmil/ft | 0.000831213 mΩ·cm |
| 10 Ω·cmil/ft | 0.00166243 mΩ·cm |
| 25 Ω·cmil/ft | 0.00415607 mΩ·cm |
| 50 Ω·cmil/ft | 0.00831213 mΩ·cm |
| 100 Ω·cmil/ft | 0.0166243 mΩ·cm |