Cable Size Calculator

Cable Size Calculator is a fast, accurate, and easy-to-use tool for electrical contractors, solar PV installers, engineers, and DIY enthusiasts to quickly determine safe wire gauge (AWG / mm²) and voltage drop. Key Features: • Accurate Cable Sizing: Calculate required wire size based on current (Amps), voltage, circuit type, and distance. • Voltage Drop Calculation: View exact voltage drop percentage and power loss in real time. • Copper & Aluminum Support: Toggle instantly between Copper and Aluminum conductors. • Circuit Flexibility: Supports DC, Single-Phase AC, and 3-Phase AC circuits. • Advanced Electrical Rules: Optionally apply NEC 125% continuous load rules, target voltage drop limits (1% to 5%), and conductor insulation temperature ratings. • Simple & Clean UI: Designed for fast field calculations without complicated clutter. Download Cable Size Calculator today for fast, reliable, and compliant electrical wire calculations!