EV Calc Pro

EV Calc Pro is the professional-grade electrical calculator built specifically for EV charger installers and electricians. Stop doing math on paper — get accurate, NEC-compliant results in seconds.

CALCULATORS INCLUDED:

⚡ EV Charger Load — Complete circuit analysis for EV charger installations

⚡ EV Site Load — Full service load calculation for multi-charger sites (NEC 220, 625)

⚡ Wire Size — NEC conductor sizing with temperature and conduit corrections

⚡ Voltage Drop — Voltage drop analysis with pass/fail results

⚡ Breaker Sizing — Overcurrent protection sizing per NEC

⚡ Transformer Sizing — kVA transformer sizing for EV service upgrades

⚡ Conduit Fill — NEC 358/344 conduit fill percentage calculator

⚡ Grounding Conductor — Equipment grounding conductor sizing

⚡ Ampacity Derating — Temperature and conduit fill derating per NEC 310

⚡ Box Fill — NEC 314.16 box fill calculation

⚡ Power Calculator — Watts, amps, and volts conversion

WHY EV CALC PRO:

• Built for the field — fast inputs, instant results

• 100% offline — no internet required, works on job sites

• NEC code references on every calculator

• Dark mode for working in low-light conditions

• Export and share results via text, email, or any app

• Free — no subscription, no paywalls

Part of the Charge Rigs family of tools for EV charging professionals.