Aluminum Brass and Copper Sheet Gauge to millimeters Chart

Quick answer: Aluminium, brass and copper sheet usually follow the AWG (Brown & Sharpe) gauge: 10 ga = 2.59 mm, 12 ga = 2.05 mm, 14 ga = 1.63 mm, 16 ga = 1.29 mm, 18 ga = 1.02 mm, 20 ga = 0.81 mm, 22 ga = 0.64 mm. Weight per m² per mm: aluminium 2.7 kg, brass 8.5 kg, copper 8.96 kg.