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Voltage Drop Calculator

Power Supply Power Supply
VDC out (V):
Load Load
Amps drawn (A):
Wire Wire Specifications
Length (ft):
(length in both directions)
AWG:
 
 
Voltage Results (estimated)
Voltage at Power Supply:
Vdrop:
Voltage at Load:

  1. Calculations are only estimates
  2. Assume a 30°C ambient temperature
  3. Assume a 20°C max temperature rise
  4. Assume using a Standard Stranded Wire
  5. Click here to view a list of the DC Resistances for each Wire Gauge
  6. Wire length specification encompasses both directions
  7. Please read our Disclaimer and User Agreement