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Fractions of an in(Inch Imperial) to decimal inches to cm(Centimetres Metric) conversion table.

Sometimes in CNC machining you need to quickly covert inches or mm or vice versa, this conversion table allows you to quickly assertion that inch (In) to centimetre (Cm) comparison.

The table below at 1/64 of an inch (In) up to 1 inch (In) in 1/64 inch Fractions of an inch (In) converted into 1/1000th of inch in Decimal then converted in metric centimetre (Cm).

Inches to CM quick conversion reference table.

Inches

CM

Fractions

Decimal

Metric

1/64 0.01563 0.0397
1/32 or 2/64 0.03125 0.0794
3/64 0.04688 0.1191
1/16 or 4/64 0.06250 0.1588
5/64 0.07813 0.1984
3/32 or 6/64 0.09375 0.2381
7/64 0.10938 0.2778
1/8 or 8/64 0.12500 0.3175
9/64 0.14063 0.3572
5/32 or 10/64 0.15625 0.3969
11/64 0.17188 0.4366
3/16 or 12/64 0.18750 0.4763
13/64 0.20313 0.5160
7/32 or 14/64 0.21875 0.5556
15/64 0.23438 0.5953
1/4 or 16/64 0.25000 0.6350
17/64 0.26563 0.6747
9/32 or 18/64 0.28125 0.7144
19/64 0.29688 0.7541
5/16 or 20/64 0.31250 0.7938
21/64 0.32813 0.8334
11/32 or 22/64 0.34375 0.8731
23/64 0.35938 0.9128
3/8 or 24/64 0.37500 0.9525
25/64 0.39063 0.9922
13/32 or 26/64 0.40625 1.0319
27/64 0.42188 1.0716
7/16 or 28/64 0.43750 1.1113
29/64 0.45313 1.1509
15/32 or 30/64 0.46875 1.1906
31/64 0.48438 1.2303
1/2 or 32/64 0.50000 1.2700
33/64 0.51563 1.3097
17/32 or 34/64 0.53125 1.3494
35/64 0.54688 1.3891
9/16 or 36/64 0.56250 1.4288
37/64 0.57813 1.4684
19/32 or 38/64 0.59375 1.5081
39/64 0.60938 1.5478
5/8 or 40/64 0.62500 1.5875
41/64 0.64063 1.6272
21/32 or 42/64 0.65625 1.6669
43/64 0.67188 1.7066
11/16 or 44/64 0.68750 1.7463
45/64 0.70313 1.7859
23/32 or 46/64 0.71875 1.8256
47/64 0.73438 1.8653
3/4 or 48/64 0.75000 1.9050
49/64 0.76563 1.9447
25/32 or 50/64 0.78125 1.9844
51/64 0.79688 2.0241
13/16 or 52/64 0.81250 2.0638
53/64 0.82813 2.1034 
27/32 or 54/64 0.84375 2.1431
55/64 0.85938 2.1828
7/8 or 56/64 0.87500 2.2225 
57/64 0.89063 2.2622
29/32 or 58/64 0.90625 2.3019
59/64 0.92188 2.3416
15/16 or 60/64 0.93750 2.3813
61/64 0.95313 2.4209
31/32 or 62/64 0.96875 2.4606
63/64 0.98438 2.5003
1" or 64/64 1.00000 2.5400

 

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