Electrical Engineering Portfolio

Cable Voltage Drop Calculator

Ready

Design Inputs

Circuit type

Supply voltage (V) Load power (W)

One-way length (m) Conductor area (mm2)

Material Drop limit (%)

Results

Pass

Load current 0 A

Voltage drop 0 V

Drop percent 0%

Cable loss 0 W

Conductor Comparison

mm2

Area	Drop	Loss	Status

Engineering Notes

Uses the full outgoing-and-return cable path for resistance.
Copper resistivity: 0.0175 ohm mm2/m at 20 degC.
Aluminum resistivity: 0.0282 ohm mm2/m at 20 degC.
Final cable selection also needs code, temperature, protection, and installation checks.