Electrical Estimating Tools

Sizing & Compliance

Ensure your electrical installations meet NEC requirements with our suite of free sizing and compliance calculators.

Calculate voltage drop instantly for single and 3-phase circuits.

Calculate minimum conduit sizes per NEC Chapter 9.

Calculate electrical box volumes instantly based on NEC 314.16.

Ready to automate your entire estimate?

Stop jumping between tools. MoonLead Estimator brings your calculators, pricing, and proposals into one seamless workflow.