EV Charger Calc: Load & Wire

EV Charger Calc is the on-site calculator for electricians who install Level 2 EV chargers. Check the panel, size the circuit, confirm the voltage drop and conduit fill, then turn the job into a clean PDF quote for your customer.

FOUR CALCULATORS, ONE JOB • Panel load — NEC 220.82 optional method for dwellings. See the total load, amps, percent of service, spare capacity, and what the charger adds. Over-capacity results show your options, including a managed (load-managed) charger. • Breaker & wire — 125% continuous load, the next standard breaker, copper or aluminum conductor at 60 °C or 75 °C terminals, and the equipment grounding conductor. Plug-in chargers get the receptacle type and GFCI note for the code edition you pick. • Voltage drop — drop in volts and percent, voltage at the charger, the longest run for your target, and a size-by-size comparison with a chart. • Conduit fill — fill percent for EMT, PVC, RMC, IMC and flexible conduit, the smallest size that fits, and a cross-section view.

SHOW YOUR WORK Every result lists the formula, the inputs and the code section it follows, so you can explain the numbers to a customer or an inspector. Choose NEC 2023, 2020 or 2017. Work in imperial or metric.

JOBS AND QUOTES Save each install as a job with the customer, site and charger details. Results flow into the quote: materials from your price list, labor, permit fee and tax. Mark quotes as quoted or won and keep track of every job.

MADE FOR THE FIELD • Works offline — your jobs sync when you are back online. • Start as a guest; sign in with Apple or Google later to keep your jobs on every device. • English and Spanish.

FREE All four calculators, one saved job, and a quote preview.

EV CHARGER CALC PRO • Unlimited saved jobs • Export and share PDF quotes • Your company logo on every quote

Pro is an auto-renewing subscription: $6.99 per month, or $39.99 per year with a 3-day free trial. Prices may vary by country and are shown in the app before you buy. Payment is charged to your Apple ID account at confirmation of purchase. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period; your account is charged for renewal within 24 hours before the end of the period. Manage or cancel the subscription in your Apple ID account settings after purchase. Any unused part of a free trial ends when you buy a subscription.

Estimates only. Verify with local code and a licensed professional. EV Charger Calc does not replace the NEC, your local amendments, or the authority having jurisdiction.

Privacy Policy: https://evchargercalc.web.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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