VOLTAGE DROP CALCULATOR

Ashton Sicilia

Electrical Engineer

This Voltage Drop Calculator, created by Ashton Sicilia and Rylin Snyder, quickly verifies proper cable sizing for both AC and DC systems. Manual voltage drop calculations can be tedious, but this tool simplifies the process.

Results appear instantly: green highlights indicate sufficient cable sizing for voltage drop and load amps

The AC calculator references NEC 2020 Chapter 9 Table 9, and the DC calculator references NEC 2020 Chapter 9 Table 8.

AC systems inputs:

• input voltage

• maximum voltage drop

• single phase or three phase power

• power factor

• cable type/gauge/length

• conduit type

• load amps

• number of parallel runs