CuCalc vs Wire & Load

CuCalc: Electrical Cable Sizing & Project Management Professional electrical engineering at your fingertips. Generate professional technical reports instantly. CuCalc is the ultimate all-in-one tool for electricians, engineers, and contractors to handle accurate cable sizing, voltage drop calculations, and automated Bill of Materials (BOM) management on-site or in the office. Try it now—generate your first professional PDF report completely free! WHY CHOOSE CUCALC? • Stop using manual spreadsheets. CuCalc calculates AND manages. • Automatically aggregates your project bill of materials. • Built-in safety warnings prevent mechanical strength and compliance errors. • Saves hours of manual administrative procurement work. KEY FEATURES: • SMART CABLE SIZING: Precise calculations based on power, voltage, and load type (including specialized motor calculations). • DUAL STANDARDS: Full compliance tracking for both IEC (International) and NEC (USA/North America) standards. • UNIT FLEXIBILITY: Toggle instantly between Metric (mm²) and Imperial (AWG/kcmil) units. • AUTOMATED MATERIAL SUMMARY: Add cables, breakers, and accessories. CuCalc sums up identical material types across multiple entries for quick ordering. • PROJECT ARCHIVE: Group multiple calculations into neat projects. Save, edit, and export your history seamlessly. • CUSTOM INVENTORY: Add your own custom materials, unique cables, or specialized fuses to any project. • PROFESSIONAL PDF REPORTS: Export detailed, branded technical reports with your Company Name to share with clients or team members. TECHNICAL SPECIFICATIONS: • Calculations: Voltage drop, current (A), minimum permitted conductor size, and breaker pairing. • Localization: Fully translated in English, German, French, and Croatian. Download CuCalc today to eliminate calculation errors and professionalize your electrical workflow.

Stop guessing the right wire size. Wire & Load is the no-internet-needed reference every electrician and maintenance tech wants in their pocket. GET AN INSTANT RECOMMENDATION for AWG / mm² wire size, voltage drop percentage, and the matching standard circuit breaker — driven by NEC 2023 / 75°C ampacity tables and the 240.6(A) breaker series. WHAT'S INSIDE • Voltage-drop calculator — single- and three-phase, copper or aluminum • Configurable voltage-drop limit (0.5% – 10%) • NEC 240.4(B) next-size-up breaker rule applied automatically • 60°C limits for 14/12/10 AWG copper and 12/10 AWG aluminum pre-applied per NEC 240.4(D) • Continuous-load (≥ 3 hr) 1.25× multiplier toggle • Power-mode input — enter watts and power factor, the app derives the working current OFFLINE REFERENCE TABLES • AWG ↔ mm² ↔ diameter (ASTM B258) • Copper and aluminum ampacity (NEC 310.16, 75°C) • Standard breaker sizes (NEC 240.6(A)) • Motor starting inrush multipliers — DOL, star-delta, soft starter, VFD (NEMA MG-1) DESIGNED FOR THE FIELD • Works on any job site, no signal needed • Search built into every reference table • Both AWG and mm² always shown on results • Switch between metric (mm² / m) and imperial (AWG / ft) • Localized in English, Spanish, Japanese, French, German, and Portuguese PRIVACY FIRST No accounts. No analytics. No ads. No tracking. Your inputs never leave your device. PRICING Try Wire & Load free for 7 days. After that, unlock lifetime access for a single $1.99 purchase — no subscription, no recurring charges, free updates. DISCLAIMER This app provides general reference information based on commonly-used electrical engineering tables and formulas. Results are estimates and do not constitute professional engineering advice. Always follow the electrical code applicable in your jurisdiction and consult a licensed electrician or engineer.