81 mm to AWG

81 mm = -19.7 AWG

mmAWG
66 mm-17.93
71 mm-18.56
76 mm-19.15
81-19.7
86 mm-20.22
91 mm-20.7
96 mm-21.17

81 mm = -19.7 AWG

Formula

d(mm) = 0.127 × 92^((36 − AWG) / 39) — the American Wire Gauge geometric progression