⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-24)

Wire Size & Voltage Drop Calculator Hub (NEC AWG & IEC mm²)

Select your load current and standard below:

US NEC AWG Wire Sizing (Feet)

5 Amp Wire Size at 100 ft (240V NEC)10 Amp Wire Size at 100 ft (240V NEC)15 Amp Wire Size at 100 ft (240V NEC)20 Amp Wire Size at 100 ft (240V NEC)25 Amp Wire Size at 100 ft (240V NEC)30 Amp Wire Size at 100 ft (240V NEC)35 Amp Wire Size at 100 ft (240V NEC)40 Amp Wire Size at 100 ft (240V NEC)45 Amp Wire Size at 100 ft (240V NEC)50 Amp Wire Size at 100 ft (240V NEC)60 Amp Wire Size at 100 ft (240V NEC)70 Amp Wire Size at 100 ft (240V NEC)80 Amp Wire Size at 100 ft (240V NEC)90 Amp Wire Size at 100 ft (240V NEC)100 Amp Wire Size at 100 ft (240V NEC)110 Amp Wire Size at 100 ft (240V NEC)125 Amp Wire Size at 100 ft (240V NEC)150 Amp Wire Size at 100 ft (240V NEC)175 Amp Wire Size at 100 ft (240V NEC)200 Amp Wire Size at 100 ft (240V NEC)

International IEC 60364 Metric Cable Sizing (mm² & Meters)

5A Cable Size at 30m (400V IEC mm²)10A Cable Size at 30m (400V IEC mm²)15A Cable Size at 30m (400V IEC mm²)20A Cable Size at 30m (400V IEC mm²)25A Cable Size at 30m (400V IEC mm²)30A Cable Size at 30m (400V IEC mm²)35A Cable Size at 30m (400V IEC mm²)40A Cable Size at 30m (400V IEC mm²)45A Cable Size at 30m (400V IEC mm²)50A Cable Size at 30m (400V IEC mm²)60A Cable Size at 30m (400V IEC mm²)70A Cable Size at 30m (400V IEC mm²)80A Cable Size at 30m (400V IEC mm²)90A Cable Size at 30m (400V IEC mm²)100A Cable Size at 30m (400V IEC mm²)110A Cable Size at 30m (400V IEC mm²)125A Cable Size at 30m (400V IEC mm²)150A Cable Size at 30m (400V IEC mm²)175A Cable Size at 30m (400V IEC mm²)200A Cable Size at 30m (400V IEC mm²)