Voltage Drop Calculator

Calculate voltage drop across a cable run and verify compliance with installation standards.

Voltage Drop Calculator
IEC 60364 · IEC 60228 · Standard resistance values
A
m
⚠ Please enter a valid load current and cable length before calculating.

Calculation Results

Voltage Drop as % of Supply Voltage
0.00 % Drop
✓ Within Limit
Voltage Drop
— V
Receiving Voltage
— V
Power Lost
— W
Cable Resistance
— Ω
Voltage Drop vs Allowable Limit 0%
Limit
—
Recommendation
—

Disclaimer: Results are based on simplified DC resistance values from IEC 60228 and standard IEC 60364 calculation methods. Reactance effects at low power factors and harmonic loads are not included. All results must be verified by a qualified electrical engineer prior to use in any installation.