Ohm circular mil per foot (Ω·cmil/ft)
US wire unit: resistance of a wire one foot long with a cross-section of one circular mil (π/4 × 0.001² in²).
What is an ohm circular mil per foot?
- Symbol
- Ω·cmil/ft
- Quantity
- Electric Resistivity
- Unit system
- US customary
- Definition
- US wire unit: resistance of a wire one foot long with a cross-section of one circular mil (π/4 × 0.001² in²).
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in US wire tables and electrical calculations for voltage drop, where wire sizes are given in circular mils.
Ohm circular mil per foot in other electric resistivity units
- 1 Ω·cmil/ft ≈ 1.662426113e-9 Ω·mOhm circular mil per foot to Ohm meter converter
- 1 Ω·cmil/ft ≈ 1.662426113e-7 Ω·cmOhm centimeter
- 1 Ω·cmil/ft ≈ 0.1662426113 µΩ·cmMicroohm centimeter
- 1 Ω·cmil/ft ≈ 0.001662426113 Ω·mm²/mOhm square millimeter per meter
Ohm circular mil per foot quick reference
| Ohm circular mil per foot | Ohm meter | Microohm centimeter | Ohm centimeter |
|---|---|---|---|
| 1 Ω·cmil/ft | ≈ 1.662426113e-9 Ω·m | ≈ 0.1662426113 µΩ·cm | ≈ 1.662426113e-7 Ω·cm |
| 10 Ω·cmil/ft | ≈ 1.662426113e-8 Ω·m | ≈ 1.662426113 µΩ·cm | ≈ 0.000001662426113 Ω·cm |
| 100 Ω·cmil/ft | ≈ 1.662426113e-7 Ω·m | ≈ 16.62426113 µΩ·cm | ≈ 0.00001662426113 Ω·cm |
| 1000 Ω·cmil/ft | ≈ 0.000001662426113 Ω·m | ≈ 166.2426113 µΩ·cm | ≈ 0.0001662426113 Ω·cm |
Where the ohm circular mil per foot fits
The next larger electric resistivity unit is the microohm-centimeter (µΩ·cm). 1 Ω·cmil/ft ≈ 0.1662426113 µΩ·cm, and 1 µΩ·cm ≈ 6.015304936 Ω·cmil/ft.
Frequently asked questions
- How many ohm-meters are in one ohm circular mil per foot?
- One ohm circular mil per foot ≈ 1.662426113e-9 Ω·m (ohm-meters).
- How many microohm-centimeters are in one ohm circular mil per foot?
- One ohm circular mil per foot ≈ 0.1662426113 µΩ·cm (microohm-centimeters).
- How many ohm-centimeters are in one ohm circular mil per foot?
- One ohm circular mil per foot ≈ 1.662426113e-7 Ω·cm (ohm-centimeters).