Electrical Calculator Pro - Free Download

⚡ Electrical Calculator Pro — The Ultimate Engineering Toolkit for Electrical & Electronics Professionals
From field engineers to students, from electricians to design engineers — the most comprehensive electrical calculator app with 50+ professional tools, all in one place.

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🔌 BASIC ELECTRICAL CALCULATIONS
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• Ohm's Law Calculator (V, I, R, P)
• Power & Energy Calculator (kW, kWh, cost)
• Power Factor & Reactive Power (cos φ, kVAR)
• Impedance Calculator (R, XL, XC, Z)
• Neutral Current Calculator (unbalanced 3-phase)
• Transformer Ratio Calculator (primary/secondary)
• Analog Signal Converter (4-20mA / 0-10V)

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🔧 RESISTOR & ELECTRONICS
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• Resistor Color Code Reader (4 & 5 band)
• SMD Resistor Code Decoder (3 & 4 digit)
• Series & Parallel Resistor Calculator
• Current Divider Circuit Calculator
• LC Resonance Frequency Calculator
• Capacitor Code Decoder
• LED Series Resistor Calculator
• Voltage Divider Calculator

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🏭 MOTOR & DRIVES
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• Motor Current Calculator (1-phase & 3-phase, kW/HP)
• Motor Speed & Torque Calculator (RPM, Nm)
• Motor Protection Settings (overload, fuse sizing)
• Motor Insulation Resistance Evaluation
• Steinmetz Capacitor Calculator
• VFD / Drive Error Code Reference
• NEC Current Table

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🔋 BATTERY & POWER SYSTEMS
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• Battery Runtime Calculator (UPS/battery backup)
• Battery Charge Time Calculator
• UPS Power Calculator (VA/W conversion)
• CCTV Storage Calculator

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🔆 LIGHTING & SOLAR ENERGY
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• Lighting Calculator (lumen, lux, area)
• Street Lighting Calculator
• Emergency Lighting Calculator
• Solar Panel Calculator (panel count, battery sizing)

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🔌 CABLE & PROTECTION
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• Cable Cross-Section Calculator (IEC & NEC standards)
• Cable Impedance Calculator
• Cable Power Loss Calculator
• Cable Temperature Correction Factor
• Distributed Load Calculator
• Cable Capacity Table
• Fuse Curves Reference

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⚡ TRANSFORMER & COMPENSATION
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• Transformer Calculator (power, current, efficiency)
• Transformer Loss Calculator (copper & iron losses)
• VAR → µF Capacitor Conversion
• Grounding Calculator

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📋 REFERENCE & TABLES
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• IP Protection Class Guide (IP20–IP68)
• Pin Diagrams (RJ45, USB, HDMI, RS232, SD Card, SIM)
• Unit Converter (power, temperature, wire gauge)

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✨ APP FEATURES
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✅ Works fully offline — no internet required
✅ Available in Turkish, English and German
✅ Dark & Light theme support
✅ Clean, fast and professional interface
✅ Large buttons optimized for field use
✅ Instant results — no need to press a calculate button

Electrical Calculator Pro is an indispensable tool for electrical engineers, electronics technicians, automation specialists, electrical students and field crews.