Voltage Drop Guide & Calculator

Calculate the recommended wire gauge (AWG) to maintain a safe 3% voltage drop between your driver and LED tape light.

System Voltage

Tape Light Watts per Foot (W/ft)

Length of Tape Light (ft)

Distance from Driver to Light (ft)

24V Voltage Drop Reference Chart

Wire Gauge	5W	10W	20W	30W	40W	50W	60W	70W	80W	90W	100W
22 AWG	107 ft	52 ft	27 ft	17 ft	13 ft	10.5 ft	9 ft	7.5 ft	6.8 ft	6 ft	5.3 ft
20 AWG	170 ft	85 ft	43 ft	27 ft	21 ft	17 ft	14 ft	12 ft	11 ft	9 ft	8 ft
18 AWG	270 ft	134 ft	68 ft	45 ft	33 ft	27 ft	22 ft	19 ft	17 ft	15 ft	14 ft
16 AWG	430 ft	215 ft	109 ft	72 ft	54 ft	43 ft	36 ft	31 ft	27 ft	24 ft	22 ft
14 AWG	680 ft	345 ft	174 ft	115 ft	86 ft	69 ft	57 ft	49 ft	43 ft	39 ft	36 ft
12 AWG	1090 ft	539 ft	272 ft	181 ft	135 ft	108 ft	90 ft	77 ft	68 ft	61 ft	56 ft
10 AWG	1730 ft	784 ft	397 ft	263 ft	197 ft	158 ft	131 ft	112 ft	98 ft	97 ft	82 ft

12V Voltage Drop Reference Chart

Wire Gauge	5W	10W	20W	30W	40W	50W	60W
22 AWG	27 ft	14 ft	7 ft	4.5 ft	3.5 ft	2.8 ft	2.2 ft
20 AWG	43 ft	18 ft	9 ft	6 ft	5 ft	4 ft	3 ft
18 AWG	68 ft	34 ft	17 ft	11 ft	8 ft	6 ft	5 ft
16 AWG	110 ft	54 ft	27 ft	18 ft	13 ft	10 ft	9 ft
14 AWG	170 ft	86 ft	43 ft	29 ft	21 ft	17 ft	14 ft
12 AWG	275 ft	134 ft	68 ft	45 ft	34 ft	27 ft	22 ft
10 AWG	430 ft	199 ft	99 ft	66 ft	49 ft	39 ft	33 ft