12V / 24V Wire Gauge & Voltage Drop Solver
Calculate safe American Wire Gauge (AWG) sizing, voltage drop loss, and fuse ratings for off-grid camper vans and solar batteries.
Circuit Electrical Parameters
ABYC & NEC StandardRecommended Cable & Fuse Spec
Recommended Wire Gauge
6 AWG
Voltage Drop
1.8%
Voltage Loss
0.22V
Fuse Rating
40A Fuse
Round-Trip Conductor Path
30.0 Feet Total Circuit Loop
Conductor Material Standard
OFC Marine-Grade Tinned Copper (Fine Stranded)
Fuse Placement Rule
Place fuse within 7 inches of positive battery terminal
Fire Safety Tip
Always size the fuse to protect the WIRE, not the appliance
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