Printable Voltage Drop Workbook
This one-page voltage drop workbook is for electricians, builders, and DIY users who need a quick way to size conductors and check voltage drop on a circuit. It includes columns for Circuit, Volts, Amps, One-way ft, Phase factor, K, Circular mils, VD (V), VD %, and OK at 3%? The sheet also lists common factor values for single-phase and three-phase circuits, plus K values for copper and aluminum.
Free printable · PDF
- 1 page
- US Letter, landscape — choose “Fit to page” for A4
- PDF, 99 KB
Free for personal, family and classroom use.
Use it by entering the circuit name, system voltage, load current, and one-way distance, then reviewing the calculated voltage drop and percent drop. Sample rows include Garage feeder, Well pump, and Shop 3-phase, so you can compare your own numbers against real examples on a letter landscape page.
Good for
- Check voltage drop on feeder circuits
- Compare copper and aluminum wire sizing
- Review 3% voltage drop limits
Tip: Print landscape on Letter paper so the full column set stays easy to read.
3 files · XLSX, PDF
Get every sheet: Voltage Drop & Wire Sizing Workbook
This sheet plus 2 more in one download, with the editable Excel files. Excel voltage drop workbook for single- and three-phase circuits with automatic wire size check, a printable circular mil and K-factor chart, and a feeder and branch circuit schedule.
$5.00 USD, one-time 3 files · about $1.67 each
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Printable Circular Mil and K Chart
Printable Circuit Schedule