Convert Ohm circular mil per foot to Megaohm-metres
Convert Ohm circular mil per foot (Ω·cmil/ft) to Megaohm-metres (MΩ·m) instantly and accurately.
Conversion Formula
MΩ·m = Ω·cmil/ft × 1.662426113e-15
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 Megaohm-metres
The megaohm-metre (MΩ·m) equals 10⁶ Ω·m, the scale for polymer insulators and high-purity dielectric ceramics. PTFE (Teflon) has resistivity ~10⁷ MΩ·m; polypropylene cable insulation is 10⁴-10⁶ MΩ·m; IEC 60093 surface and volume resistivity measurements on solid insulating materials are quoted in MΩ·m. 1 MΩ·m = 10⁶ Ω·m = 10³ kΩ·m.
Quick Reference Table
| Ohm circular mil per foot (Ω·cmil/ft) | Megaohm-metres (MΩ·m) |
|---|---|
| 1 Ω·cmil/ft | 1.662 × 10-15 MΩ·m |
| 2 Ω·cmil/ft | 3.325 × 10-15 MΩ·m |
| 5 Ω·cmil/ft | 8.312 × 10-15 MΩ·m |
| 10 Ω·cmil/ft | 1.662 × 10-14 MΩ·m |
| 25 Ω·cmil/ft | 4.156 × 10-14 MΩ·m |
| 50 Ω·cmil/ft | 8.312 × 10-14 MΩ·m |
| 100 Ω·cmil/ft | 1.662 × 10-13 MΩ·m |