220V Wire Size Calculator
Free calculate the correct wire gauge for 220v ac circuits based on circuit amperage, wire length, and voltage drop requirements.
Circuit Parameters
NEC recommends ≤ 3% for branch circuits
Results
Enter circuit parameters to calculate wire size
220V AC Wiring Guide
Common 220V Applications
- • Electric dryers: 30 amps
- • Electric ranges: 40-50 amps
- • Water heaters: 30-50 amps
- • HVAC systems: 20-60 amps
Safety Guidelines
- • Always follow NEC code requirements
- • Use appropriate circuit breakers
- • Consider ambient temperature derating
- • Consult licensed electrician for installations