AWG American Wire Gauge to mm2
20 AWG = 0.5 mm2
18 AWG = 0.75 mm2
17 AWG = 1 mm2
16 AWG = 1.5 mm2
14 AWG = 2.5 mm2
12 AWG = 4.0 mm2
10 AWG = 6.0 mm2
closest equivalent wire size