Electrical / Electronics
Cable resistance from resistivity
Calculates resistance of a uniform conductor from resistivity, length, and cross-sectional area.
Related calculators
Theoretical DC voltage drop
Calculates approximate voltage drop for a simple DC circuit with outgoing and return conductors.
Cable current density
Calculates current density as current divided by cross-sectional area.
AWG wire resistance and mass
Calculates AWG geometry, resistance, metal mass, and optional voltage drop and power loss.
Cable power loss
Helper calculation for cable power loss from current and resistance; it is not an allowable-load assessment.
Theoretical three-phase voltage drop
Calculates simplified voltage drop in a balanced three-phase system from per-length parameters.
Single-phase voltage drop
Helper calculation for simplified single-phase voltage drop from resistivity and area; it is not standards-based conductor sizing.