Configurator
Enter your specs to determine voltage drop & recommended wire size.
V
A
ft
Use Recommended
Live Voltage Drop Assessment
Based on your wire and current selections.
Voltage Drop
0.38 V
3.02%
Voltage at Load
12.22 V
From 12.6V input
Heat Dissipated
5.71 W
Along wire length
Perfect (0%)
Max Target Limit
Extreme (15%+)
0%
Critical Limit: 3%
15%
Wire Gauge Recommendation
Your chosen 14 AWG wire is perfectly safe for a 15 Amp load over 15ft.
Comprehensive 12V AWG Wire Sizing Chart (Amps vs Distance)
Values indicate the maximum current (Amps) a given AWG wire can carry at specific run lengths to keep voltage drop under 3% (Critical systems).
| AWG | 5 ft | 10 ft | 15 ft | 20 ft | 25 ft | 30 ft | 40 ft |
|---|---|---|---|---|---|---|---|
| 18 AWG | 5.9A | 2.9A | 1.9A | 1.4A | 1.1A | 1.0A | 0.7A |
| 16 AWG | 9.4A | 4.7A | 3.1A | 2.3A | 1.9A | 1.6A | 1.2A |
| 14 AWG | 15.0A | 7.5A | 5.0A | 3.7A | 3.0A | 2.5A | 1.9A |
| 12 AWG | 23.8A | 11.9A | 7.9A | 5.9A | 4.8A | 4.0A | 3.0A |
| 10 AWG | 37.8A | 18.9A | 12.6A | 9.4A | 7.6A | 6.3A | 4.7A |
| 8 AWG | 60.0A | 30.0A | 20.0A | 15.0A | 12.0A | 10.0A | 7.5A |
Current is within safe limits for 3% drop.
Caution: Approaching limit.
Do not exceed! High voltage drop potential.