The resistance of wire - with online calculator

Wire Table for International Standards Annealed Copper American Wire Gauge (B.&S.) (Table modified to display shorter lengths and typical uses)

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Wire Length (feet)   Gauge (AWG)  

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TYPICAL
USES 		WIRE
GAUGE #		 DIAMETER
in MILS.		 AREA
DIAMETER		 OHMS PER
100 FT.		 OHMS PER
10 FT.		 OHMS PER
FOOT
House Wiring 12 80.808 6,529.90 0.15880 0.015880 0.001588
13 71.901 5,178.40 0.20030 0.020030 0.002003
Heavy Power Wire 14 64.084 4,106.80 0.25250 0.025250 0.002525
15 57.068 3,256.70 0.31840 0.03184 0.00318
Heavy Hook-up 16 50.820 2,582.90 0.40160 0.04016 0.00402
17 45.257 2,048.20 0.50640 0.05064 0.00506
Std. Computer Power Cables 18 40.303 1,624.30 0.63850 0.06385 0.00639
19 35.890 1,288.10 0.80510 0.08051 0.00805
Std. Hook-up 20 31.961 1,021.50 1.01500 0.10150 0.01015
21 28.462 810.10 1.28000 0.12800 0.01280
Typ. Interface 22 25.347 642.40 1.61400 0.16140 0.01614
23 22.571 509.45 2.03600 0.20360 0.02036
Std. Hook-up 24 20.100 404.01 2.56700 0.25670 0.02567
25 17.900 320.40 3.23700 0.32370 0.03237
Heavy .050 Ribbon Cable 26 15.940 254.10 4.08100 0.40810 0.04081
27 14.195 201.50 5.14700 0.51470 0.05147
Std. .050 Ribbon Cable 28 12.641 159.79 6.49000 0.64900 0.06490
29 11.257 126.72 8.18300 0.81830 0.08183
Std. .025 pitch Ribbon Cable / Solid Wire for Wire Wrap 30 10.025 100.50 10.32000 1.03200 0.10320

For pullout force information see our Pullout Force Comparison.