ElectriCalc Pro vs Electrical Load Calc NEC

FREE Try Before You Buy trial, your App Store account is not charged by Apple during the free trial. Electrical Contractors, Designers, Electricians, and Lighting Specialists solve tough electrical calculations in seconds and deliver those solutions in conformance with the latest NEC®. The ElectriCalc Pro electrical code calculator is compliant with 2023, 2020, 2017, 2014, 2011, 2008, 2005, 2002, 1999, and 1996 NEC®. The official US-based National Electrical Code® (NEC) ElectriCalc Pro from Calculated Industries for iOS is a full-featured emulation of our popular #5065/#5070 models. ----- Full Functionality of our Pro Handheld Calculator ----- • Experience the power of a professional calculator on your iPhone. • ElectriCalc Pro replicates all features & solutions of our top-rated handheld model. ----- Built-in Help & Tutorials ----- • Press and hold any key for clear definitions, examples, and usage guides. • A complete user manual is also available. ----- Complete Electrical Reference Tool ----- • Save time, trouble, and money with ElectriCalc Pro's comprehensive electrical reference data. • All the info you need for calculations and code compliance is built into one app. The ElectriCalc Pro is a complete electrical reference tool that will save time, trouble, and money. ElectriCalc Pro Solutions: • Wire Sizes • Voltage Drop • Conduit Sizing • Motor Full-Load Amps • Fuse and Breaker Sizes • Service and Equipment Grounding Conductor Sizes • Parallel Resistance • Ohm’s Law Calculations – enter any two values to solve for the third • Circular MILS wire sizes ElectriCalc Pro Calculations: • Work directly in and convert between Amps, Watts, Volts, Volt-Amps, kVA, kW, PF% and EFF%, and DC Resistance • Calculate wire sizes per NEC® 310-16 and 310-17; Copper or aluminum, 3Ø/1Ø, 60°C, 75°C, 90°C insulation ratings and 100% or 125% of ampacity. Can also adjust wire sizes for ambient temperatures other than 30◦ C and more than three wires in a raceway • Integrated voltage drop solutions. Find minimum VD wire size, maximum length for any given wire size, drop percentage, actual number and percentage of Volts dropped • Conduit sizing for 12 types of conduit. Plus, it gives fill percentages, cross-sectional areas, remaining areas, and more • Find Motor Full-Load Amps per current NEC®. Works in 1Ø and 3Ø with the newly expanded tables for 3Ø induction (to 500 hp), synchronous (to 200 hp), and DC motors per NEC® 430-247, 430- 248 and 430-250 • Calculates Fuse and Breaker Sizes per NEC® 430-52 • Parallel and derated wire sizing • Parallel Resistance • NEC Table number displays when performing Wire Size calculations • Sizes overload protection per NEC® 430-32 • Automatically finds NEMA starter sizes • Calculates service and equipment grounding conductor sizes per NEC®: 250-122 and 250-66. • Enter BTU to find Kilowatts per Hour • Enter Kilowatts per Hour to find BTU • Ohm’s Law Calculations – enter any two values to solve for the third • Enter, solve, or convert to Circular MILS wire sizes Note: Electrical math is universal. However, code-based sizing solutions are based on the US National Electrical Code® (NEC); users in other countries should check with their local Code Officials for applicability. SUBSCRIPTION INFORMATION The first seven days are free. Subscriptions offered will automatically renew at the end of the chosen period. Upon purchase confirmation and completion of a free trial, payment will be charged to your Apple account. The subscription will automatically renew unless auto-renew is turned off or the subscription is canceled in settings at least one day (24 hours) before the subscription period ends. You can manage your subscription and turn off auto-renewal in your Apple account Settings > Account (Apple ID) > Subscriptions. TRADEMARKS ElectriCalc(TM) and Calculated Industries® are trademarks and registered trademarks of Calculated Industries, Inc. Copyright 2024

NEC residential electrical load calculator for electricians, contractors, and electrical engineers. Size electrical services with confidence using the NEC 220.82 Optional Method and updated NEC 2026 Article 120 demand factors. Works 100% offline on the job site. Enter dwelling square footage, pick appliances from presets, and get a permit-ready service-size recommendation in seconds - with a full step-by-step breakdown and NEC article references on every line. Switch between NEC 2023 and NEC 2026 instantly to see how the new rules change your load. LOAD CALCULATION FEATURES: - NEC 220.82 Optional Method for dwelling units - NEC 2026 Article 120 support (load calc sections renumbered 220.x to 120.x) - Toggle between NEC 2023 and NEC 2026 in one tap - Step-by-step breakdown with NEC article references per line - Heating and A/C per 220.82(C): A/C and heat pump compressor at 100%, supplemental heat at 65%, electric space heating at 65% (under 4 units) or 40% (4 or more units) - EVSE per edition: 2023 as general load per 220.57 and 220.82(B) with 7,200 VA minimum; 2026 at 100% per 120.82(D) - Service size from standard ratings: 100A, 125A, 150A, 200A, 225A, 300A, 400A, 600A - PASS/FAIL check against existing panel capacity - 29 common appliance presets with VA ratings - Custom appliance entry for any load - General lighting auto-calculated from square footage per 220.41 - Small appliance and laundry circuits added per 220.52 - HVAC non-coincident load handling (heating vs cooling) - EV charger support (Level 2: 32A, 40A, 48A) APPLIANCE PRESETS INCLUDED: - Electric range and oven (8,000-16,000 VA) - Clothes dryer (5,000-5,500 VA) - Water heater (4,500 VA) - Heat pump (2-5 ton) and central AC (2-5 ton) - Supplemental heat strips (5 kW, 10 kW) for heat pump systems - EV charger Level 2 (7,680-11,520 VA) - Dishwasher, disposal, microwave - Pool pump, hot tub, well pump - And more - or enter custom VA values PRO FEATURES (one-time purchase): - No ads - clean interface for professionals - Save calculation history by job or address - Export permit-ready PDF with full load breakdown - Dark theme support NEC 2026 UPDATES COVERED: - General lighting reduced to 2 VA/sq ft (was 3 VA/sq ft) - First tier demand reduced to 8,000 VA (was 10,000 VA) - EV chargers at 100% demand factor per 120.82(D) - Article 220 relocated to Article 120 (220.82 is now 120.82) HOW IT WORKS: 1. Enter dwelling square footage 2. Select NEC edition (2023 or 2026) 3. Add appliances from presets or custom entry 4. See total demand in amps with NEC article references 5. Get recommended service size instantly NEC ARTICLE REFERENCES: Every calculation line shows the exact NEC article reference (for example "NEC 220.82(B)" or "NEC 2026 120.82(D)"). Verify every step against the official NEC code book, build trust with inspectors, and prep for the electrical exam. PERFECT FOR: - Licensed electricians sizing residential services daily - Electrical apprentices studying for journeyman exams - Electrical contractors bidding residential and light commercial jobs - Electrical engineers and designers - Panel upgrade assessments - EV charger installation planning - New construction load calculations - Permit applications and plan review OFFLINE AND PRIVACY: - Works 100% offline - no internet needed on the job site - No account required - No data collection - your calculations stay on your device - Encrypted local storage for saved jobs Simplify residential load calculations on the job site.