Ohm Meter to Circular Mil Ohm/Foot Conversion

Convert between Ohm Meter and Circular Mil Ohm/Foot quickly and accurately.

From Ohm Meter

Ω·m

To Circular Mil Ohm/Foot

CM·Ω/ft

How to Convert Ohm Meter to Circular Mil Ohm/Foot

Conversion Formula

1 Ω·m = 601530493.4 CM·Ω/ft

1 CM·Ω/ft = 2E-9 Ω·m

Example

Convert 15 Ω·m to CM·Ω/ft:

15 Ω·m = 15 × 601530493.4 CM·Ω/ft = 9022957401 CM·Ω/ft

Unit Information

Learn about the electric resistivity units you're converting between

Ohm Meter

Ω·m

Definition

The SI base unit of electric resistivity, representing the resistance of a material per unit length when a current flows through it. One ohm meter is the resistivity of a material that has a resistance of one ohm when the current flows through a cube of the material with sides of one meter.

History/Origin

Named after Georg Simon Ohm, the German physicist who formulated Ohm's law in 1827. The ohm meter unit was established as part of the International System of Units (SI) to provide a standardized measure of electrical resistivity.

Current Use

Widely used in electrical engineering, materials science, and physics for measuring the electrical resistance properties of conductors, semiconductors, and insulators. Essential for designing electrical circuits, cables, and electronic components.

Multiplier

Offset

Circular Mil Ohm/Foot

CM·Ω/ft

Definition

A specialized unit of electric resistivity used in electrical engineering for wire and cable specifications. Combines the circular mil (area unit) with ohm per foot to express resistivity in terms of wire gauge and length.

History/Origin

Developed specifically for electrical wire and cable manufacturing in North America. The circular mil unit represents the cross-sectional area of a wire, making this unit practical for specifying wire resistivity in electrical applications.

Current Use

Extensively used in electrical wire and cable manufacturing, electrical engineering, and power distribution systems. Essential for calculating voltage drop, power loss, and conductor sizing in electrical installations.

Multiplier

2E-9

Offset