
EV Charger Load Calc
Panel & wire sizing for EVSE
0 ratings
Free
In-App Purchases
About
The electrician's answer to one question: will this home panel handle an EV charger?
Pick NEC or IEC, choose the service rating (100/125/150/200/230 A presets or custom), enter the existing demand and the charger current (16/32/40/48 A or custom). The app applies the 125% continuous-load factor (NEC 625 / IEC 60364-7-722) and gives an instant verdict: FITS, CHECK or DOES NOT FIT — with service utilization, spare capacity and the largest charger the service takes without an upgrade. When it's tight or over, it points the way: load management (EVEMS) or a service upgrade.
PRO
• Wire & breaker sizing for the EVSE branch circuit — copper, base table ampacity (NEC 310.16 75°C / IEC method C)
• Solar 120% busbar rule check: main + PV breaker vs busbar × 1.2, with the largest PV breaker that fits
• Save assessments to history
• Share clean PDF reports
The free tier always gives you the full fit verdict and text sharing.
Built for the field: big preset chips, glove-friendly keypad, huge results, Outdoor Bright mode for direct sunlight.
Everything stays on your phone — fully offline, no account, no tracking.
Results are planning estimates; installation requires local code compliance and authority approval.
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Privacy Policy: https://hdappstudio.com/evloadcalc/privacy/
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What's New in EV Charger Load Calc
1.0
August 5, 2026
Subscription plans
EV Load Pro — Monthly
Unlocks all Pro features. Renews monthly.
$2.991 Month
1
In-App Purchases
$29.99
EV Load Pro — Lifetime
One-time purchase. Unlocks Pro forever.







