Speaker Wire Gauge Calculator

Professional wire gauge calculations for optimal audio performance

Wire Length (One Way)— distance from amp to speaker

Speaker Impedance— typically 4Ω, 6Ω, or 8Ω

Amplifier Power (per channel)— max output in watts

Wire Material— CCA has ~60% higher resistance

Maximum Acceptable Power Loss: 5%— industry standard is 3–5%

Results

Not sure what gauge you need? Talk to a specialist.

Optimal for your requirements

Power Loss

3.84%

Wire Resistance

0.3192 Ω

Voltage Drop

3.84%

Power Delivered

92.5 W

10 AWGOverkill

Power Loss: 0.62%Voltage Drop: 0.62%Cost: Higher Cost

12 AWGOverkill

Power Loss: 0.98%Voltage Drop: 0.98%Cost: Higher Cost

14 AWGOverkill

Power Loss: 1.55%Voltage Drop: 1.55%Cost: Higher Cost

16 AWGOverkill

Power Loss: 2.45%Voltage Drop: 2.45%Cost: Moderate Cost

18 AWGRecommended

Power Loss: 3.84%Voltage Drop: 3.84%Cost: Lower Cost

20 AWGInsufficient

Power Loss: 5.97%Voltage Drop: 5.97%Cost: Lower Cost

22 AWGInsufficient

Power Loss: 9.16%Voltage Drop: 9.16%Cost: Lower Cost

24 AWGInsufficient

Power Loss: 13.83%Voltage Drop: 13.83%Cost: Lower Cost

Calculations based on industry-standard AWG resistance values and electrical engineering principles.