What Is This Tool?
This converter transforms electrical resistivity measurements from ohm meter, the SI unit representing how strongly a material resists electric current, into circular mil ohm/foot, which is widely used for practical cable and conductor resistance calculations in feet and circular mils.
How to Use This Tool?
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Enter the resistivity value in ohm meter.
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Select ohm meter as the source unit if not preselected.
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Choose circular mil ohm/foot as the target unit.
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Click convert to get the equivalent value in circular mil ohm/foot.
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Use the converted value in electrical design and conductor resistance calculations.
Key Features
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Converts electrical resistivity from ohm meter to circular mil ohm/foot.
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Supports resistivity values for cables, conductors, and materials in engineering and science.
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Applies a standardized conversion rate suitable for North American conductor sizing.
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Browser-based tool that works without additional software.
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Helps align measurements with common industry units like AWG and kcmil.
Examples
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0.5 ohm meter converts to 300,765,246.7 circular mil ohm/foot.
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2 ohm meter converts to 1,203,060,986.8 circular mil ohm/foot.
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1 ohm meter equals 601,530,493.4 circular mil ohm/foot.
Common Use Cases
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Specifying and comparing resistivity for conductors, insulators, and semiconductors in materials science.
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Preparing electrical conductor resistance tables using AWG or kcmil sizing.
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Calculating conductor resistance for power distribution designs using length in feet and area in circular mils.
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Reporting soil or rock resistivity in geophysical studies.
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Designing cables and overhead power lines requiring accurate resistivity unit conversions.
Tips & Best Practices
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Always verify units before converting to ensure correct input and output selections.
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Use the converted value in conjunction with conductor length and cross-sectional area to compute resistance.
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Apply this conversion primarily within North American electrical contexts where circular mil ohm/foot is standard.
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Account for temperature effects separately, as resistivity varies with temperature conditions.
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Use precise measurements of cross-sectional area and geometry to improve calculation reliability.
Limitations
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Conversion assumes constant temperature since resistivity changes with temperature.
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Circular mil ohm/foot is mainly applicable within North American wiring and conductor standards.
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Cross-sectional area and shape measurement accuracy affects the precision of resistance calculations.
Frequently Asked Questions
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What does ohm meter measure?
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Ohm meter is the SI unit of electrical resistivity, indicating how much a material resists the flow of electric current.
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Why convert ohm meters to circular mil ohm/foot?
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This conversion helps apply resistivity values within North American wiring standards that use circular mils and feet for conductor sizing and resistance calculations.
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Can this converter be used outside North America?
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Circular mil ohm/foot is predominantly used in North America, so using these units elsewhere may require additional conversions.
Key Terminology
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Ohm Meter (Ω·m)
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The SI derived unit of electrical resistivity quantifying how strongly a material opposes electric current flow.
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Circular Mil Ohm/Foot
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A unit expressing electrical resistivity scaled to one circular mil cross-sectional area and one foot length, used in practical conductor resistance calculations.
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Electrical Resistivity
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A material property representing its opposition to electric current, related to resistance via geometry and size.