Single-Phase Voltage Drop Calculator
NEC Chapter 9 R+X drop with AWG picker, conduit reactance, parallel sets and 3% verdict. 9 inputs, 5 outputs with grouped results.
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DC Voltage Drop Calculator
NEC Table 8 resistance drop for 24V DC control runs with gauge picker, material and limit verdict. 9 inputs, 5 outputs with grouped results.
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Equipment Grounding Conductor Sizer
EGC size from the upstream OCPD per NEC Table 250.122, copper or aluminum. 3 inputs, 2 outputs with grouped results.
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Max Wire Length Solver
Back-solve allowable one-way length from drop budget, with gauge picker and feet+meters results. 7 inputs, 3 outputs with grouped results.
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Three-Phase Voltage Drop Calculator
NEC Chapter 9 three-phase drop with gauge picker, PF-aware reactance and limit verdict. 9 inputs, 5 outputs with grouped results.
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