40dwt是多少g？
40dwt = 62.207g
是62.207g，所以说成62g也没问题——四舍五入的误差在0.5%以内。
反过来，40g是多少dwt？
40g = 25.7206dwt
计算公式: g = dwt × 1.555174
该数值前后的 dwt → g
22 dwt34.2138g
24 dwt37.3242g
26 dwt40.4345g
28 dwt43.5449g
30 dwt46.6552g
32 dwt49.7656g
34 dwt52.8759g
36 dwt55.9863g
38 dwt59.0966g
40 dwt62.207g
42 dwt65.3173g
44 dwt68.4276g
46 dwt71.538g
48 dwt74.6483g
50 dwt77.7587g
52 dwt80.869g
54 dwt83.9794g
56 dwt87.0897g
58 dwt90.2001g
60 dwt93.3104g