Electrical Calculators

Electrical calculators with clear outputs and validation for fast estimating.

9 calculators Lookup Sizing Voltage drop Unit toggle

Amp to Wire Size Calculator

Convert amps to a suggested wire gauge with typical ratings.

Estimate breaker size from load with basic sizing assumptions.

Estimate cable tray fill and compare against common fill limits.

Estimate conduit fill percentage and compare against common fill limits.

Estimate electrical load from connected wattage and circuit values.

Estimate quantities and get instant results with unit conversion and waste adjustments.

Calculate voltage drop by distance, load, and wire size. Shows percent drop.

Convert between watts, amps, and volts using standard formulas.

Get a wire gauge recommendation based on amperage and conductor type.