Calculator
Wire Size & Voltage Drop
Size conductors, compare copper and aluminum, and check delivered voltage.
Open tool →Calculator
Motor Power & Current
Estimate full-load current, practical breaker range, and cable suggestion.
Open tool →Calculator
Electrical Material Estimator
Create a fast material and labor planning estimate for field work.
Open tool →Why professionals use it
More defensible than a chat response.
Use a focused form when you need a repeatable planning result, a clear formula, and an easy record for a customer or project file.
Fixed formulas
Hard-coded calculation logic with visible assumptions. No hallucinated math.
Engineering context
NEC and IEC reference prompts, practical warnings, and material comparisons.
Field-ready workflow
Fast presets, copyable results, and optional PDF records for customers.
Built for practical electrical work
These browser-based tools support preliminary design, estimating, troubleshooting and documentation. Review the displayed formulas, validate nameplate and site conditions, and have final installation decisions checked against the applicable local code.