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.