cm3 1 gal =4.5459 litres =4.5459 dm3 ℉ =(1.8×℃)+32 1 ton =1.0160 tomes 1 lb =0.4536 kg 1 oz =28.3495 g 1 lbf =0.457 kgf 4.4482 N 1 lbf/in2 =0.0703kgf/cm2 =6.8948kN/m2 1 lb/ft3 =16.018 kg/m3 1 lb/in3 =27.68 g/cm3 =27.68 Mg/m3 1 Btu =251.996 cal =1.0550 KJ ...