Material Calculator - Specific Resistance

Calculator for the electrical resistance in ohm from specific resistance (electrical resistivity), diameter or cross-section and length, for example for a wire made from a certain material. The specific resistance refers to the material, it can change with temperature. When the diameter is entered, a circular cross-section is assumed. You can choose a material or enter the specific resistance directly. Diameter and cross-section count as one value. Enter three values, choose the units and press Calculate.

Specific resistance: Ω * mm² / m
Electrical resistance:

Example: a 1.5 millimeters thick copper cable (cross-section 1.767 mm²) with a length of 4 meters has an electrical resistance of 38.48 milliohms.

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