Wire Gauge Calculator
Free Wire Gauge Calculator — calculate and compare options instantly. No signup required.
⚠ SAFETY: This is an estimate only. Consult NEC code and a licensed electrician for actual installations.
Recommended Wire Gauge
AWG 10 copper
Ampacity: 30A
Actual Voltage Drop
2.48V (2.1%)
Power Loss in Wire
49.6 W
How to Use the Wire Gauge Calculator
- 1. Enter your values — fill in the input fields with your numbers.
- 2. Adjust settings — use the sliders and selectors to customize your calculation.
- 3. View results instantly — calculations update in real-time as you change inputs.
- 4. Compare scenarios — adjust values to see how changes affect your results.
- 5. Share or print — copy the link, share results, or print for your records.
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