Convert Ohm circular mil per foot to Nanoohm-metres
Convert Ohm circular mil per foot (Ω·cmil/ft) to Nanoohm-metres (nΩ·m) instantly and accurately.
Conversion Formula
nΩ·m = Ω·cmil/ft × 1.662426113
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 Nanoohm-metres
The nanoohm-metre (nΩ·m) equals 10⁻⁹ Ω·m, the most convenient scale for the resistivity of metals. Silver (1.59), copper (1.68), gold (2.44), and aluminium (2.82) all have bulk room-temperature resistivities expressible as low single-digit nΩ·m values; thin-film interconnect resistance targets in advanced IC nodes are set in nΩ·m. 1 nΩ·m = 10⁻⁹ Ω·m = 0.1 µΩ·cm.
Quick Reference Table
| Ohm circular mil per foot (Ω·cmil/ft) | Nanoohm-metres (nΩ·m) |
|---|---|
| 1 Ω·cmil/ft | 1.66243 nΩ·m |
| 2 Ω·cmil/ft | 3.32485 nΩ·m |
| 5 Ω·cmil/ft | 8.31213 nΩ·m |
| 10 Ω·cmil/ft | 16.6243 nΩ·m |
| 25 Ω·cmil/ft | 41.5607 nΩ·m |
| 50 Ω·cmil/ft | 83.1213 nΩ·m |
| 100 Ω·cmil/ft | 166.243 nΩ·m |