DC Systems
12V Voltage DropCalculator
Calculate voltage drop for 12V dc systems
DC Circuit Parameters
Circuit Parameters
Total circuit length will be 2× this value
Calculation Results
Review
Voltage Drop
2.33V
19.45%
Voltage at Load
9.67V
of 12V source
Power Loss
70.0 W
Critical - Wire size too small
12V Applications
- •Automotive electrical systems
- •Marine and boat wiring
- •RV and camper installations
- •Solar panel connections
- •LED lighting systems
- •12V battery banks
DC Formula
Vd = 2 × I × R × L
Vd = Voltage Drop (V)
I = Load Current (A)
R = Resistance (Ω/ft)
L = One-Way Distance (ft)
I = Load Current (A)
R = Resistance (Ω/ft)
L = One-Way Distance (ft)