Beckify Electrical Engineering Toolbox

Lighting Voltage Drop Optimizer

K-factor voltage drop for a lighting run from fixture count and wattage. Not a cost optimizer.

About this calculator

Use this free browser-based calculator to work through the relevant electrical inputs, review the result, and compare it with field conditions.

For design, installation, or safety decisions, verify assumptions against the applicable code edition, equipment documentation, and site requirements.

Open the interactive tool