英公制长度换算表

1寸 = 1 ” = 25.400mm

1兜 = 1/1000 = 0.025mm(Thousandth of an inch =千分之一寸, 简称 thou)

1颗 = 1/64 = 0.397mm

1踏 = 1/32 = 0.794mm1.586mm

半分 = 1/16 = 1.586mm1分 = 1/8 = 3.175mm

1分半 = 3/16 = 4.762mm

2分 = 1/4 = 6.350mm

2分半 = 5/16 = 7.938mm

3分 = 3/8 = 9.525mm

4分 = 1/2 = 12.700mm

5分 = 5/8 = 15.875mm515.875mm

6分 = 3/4 = 19.050mm