Inches (in) in Fractions / Decimal conversion to Millimetres (mm) table or decimal inches (in) to mm

The table below lists 0 to 1inches in 1/64 inch Fractions converted into 1/1000th of inch in Decimal then converted in MM.

Decimal Inches to millimetres (mm) quick conversion reference table.

Inches (in)

MM

Fractions

Decimal

Metric

1/64 0.01563 0.3969
1/32 or 2/64 0.03125 0.7937
3/64 0.04688 1.1906
1/16 or 4/64 0.06250 1.5875
5/64 0.07813 1.9844
3/32 or 6/64 0.09375 2.3812
7/64 0.10938 2.7781
1/8 or 8/64 0.12500 3.1750
9/64 0.14063 3.5719
5/32 or 10/64 0.15625 3.9688
11/64 0.17188 4.3656
3/16 or 12/64 0.18750 4.7625
13/64 0.20313 5.1594
7/32 or 14/64 0.21875 5.5562
15/64 0.23438 5.9531
1/4 or 16/64 0.25000 6.3500
17/64 0.26563 6.7469
9/32 or 18/64 0.28125 7.1437
19/64 0.29688 7.5406
5/16 or 20/64 0.31250 7.9375
21/64 0.32813 8.3344
11/32 or 22/64 0.34375 8.7312
23/64 0.35938 9.1281
3/8 or 24/64 0.37500 9.5250
25/64 0.39063 9.9219
13/32 or 26/64 0.40625 10.3187
27/64 0.42188 10.7156
7/16 or 28/64 0.43750 11.1125
29/64 0.45313 11.5094
15/32 or 30/64 0.46875 11.9063
31/64 0.48438 12.3031
1/2 or 32/64 0.50000 12.7000
33/64 0.51563 13.0969
17/32 or 34/64 0.53125 13.4937
35/64 0.54688 13.8906
9/16 or 36/64 0.56250 14.2875
37/64 0.57813 14.6844
19/32 or 38/64 0.59375 15.0812
39/64 0.60938 15.4781
5/8 or 40/64 0.62500 15.8750
41/64 0.64063 16.2719
21/32 or 42/64 0.65625 16.6687
43/64 0.67188 17.0656
11/16 or 44/64 0.68750 17.4625
45/64 0.70313 17.8594
23/32 or 46/64 0.71875 18.2562
47/64 0.73438 18.6531
3/4 or 48/64 0.75000 19.0500
49/64 0.76563 19.4469
25/32 or 50/64 0.78125 19.8438
51/64 0.79688 20.2406
13/16 or 52/64 0.81250 20.6375
53/64 0.82813 21.0344 
27/32 or 54/64 0.84375 21.4312
55/64 0.85938 21.8281
7/8 or 56/64 0.87500 22.2250 
57/64 0.89063 22.6219
29/32 or 58/64 0.90625 23.0187
59/64 0.92188 23.4156
15/16 or 60/64 0.93750 23.8125
61/64 0.95313 24.2094
31/32 or 62/64 0.96875 24.6062
63/64 0.98438 25.0031
1" or 64/64 1.00000 25.4000