Free voltage loss formula printables
Every sheet below is a free PDF you can print at home or at school. Open a sheet to see what is on it, then download it — no sign-up needed.
Printable Voltage Drop CalculatorTwo-page voltage drop calculator with fields for phases, volts, amps, length, material, and circular mils. Calculates volts dropped and % drop at 75 °C.2 pages · free PDF
Printable Resistance Tables SheetPrintable conductor resistance tables at 75 C with copper and aluminum values in ohms per 1000 ft and ohms per km, plus wire size and area.2 pages · free PDF
Printable Voltage Drop Max Length TableMax length table for 3% voltage drop on single-phase copper conductors at 75 °C, with current and wire size columns for common 120 V and 240 V runs.1 page · free PDF
Printable Voltage Drop Planning LogTrack circuit load, voltage, wire length, size chosen, voltage drop, and ampacity checks on one landscape planning log for wiring runs.1 page · free PDF4 files · XLSX, PDF, DOCX
Get every sheet: Voltage Drop Toolkit
This sheet plus 3 more in one download, with the editable Excel and Word files. Excel voltage drop calculator for single- and three-phase runs, AWG and mm² resistance tables, maximum-length tables for 120 V and 240 V at 3%, and a wire run planning log.
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