(SI Metric) 1 ft =0.3048 m 1 in =2.54cm =25.4mm 1 thou =0.0254 mm =25.4μm 1 yd2 =0.8361 m2 1 ft2 =0.0929 m2 1 in2 =6.4516 cm2 =654.16 mm2 1 yd3 =0.7645 m3 1 ft3 =0.0283 m3 =28.317 dm3 1 in3 =16.387 cm3 1 gal =4.5459 litres =4.5459 dm3 ℉ =(1.8×℃)+32 1 ...