voltage drop — free browser tool | fatcousin

cable run · cu / al · dc · 1ɸ · 3ɸ · pure resistive model · runs locally

disclaimer · read before using results

pure dc-resistance model. uses awg geometry and standard cu / al resistivity at the conductor temperature you choose · ac modes apply the same resistance and ignore inductive reactance, which stays small on typical runs but grows on long ac feeders of large conductors · no derating for bundling, ambient heat, conduit fill, insulation type, or duty cycle · this tool is not an ampacity reference.

mode

circuit

phase

conductor

inputs

current (A)supply voltage (V)conductor temp (°C)

one-way length (ft)

conductor (AWG)

result

voltage drop

1.619 V

across the round-trip conductor

drop %

13.49%

of 12.00 V supply

end voltage

10.38 V

at the load

conductor power loss

16.19 W

dissipated as heat in the wire

conductor R

5.3128 mΩ/m

per metre (one conductor)

status

>ready