Conversion Inch-Fractions to Millimeters

Fraction
Inch
Decimal Fraction
Inch
Size
mm
1/128 0.0078125 0.198
3/128 0.0234375 0.595
5/128 0.0390625 0.992
7/128 0.0546875 1.389
9/128 0.0703125 1.786
11/128 0.0859375 2.183
13/128 0.1015625 2.580
15/128 0.1171875 2.977
17/128 0.1328125 3.373
19/128 0.1484375 3.770
21/128 0.1640625 4.167
23/128 0.1796875 4.564
25/128 0.1953125 4.961
27/128 0.2109375 5.358
29/128 0.2265625 5.755
31/128 0.2421875 6.152
33/128 0.2578125 6.548
35/128 0.2734375 6.945
37/128 0.2890625 7.342
39/128 0.3046875 7.739
41/128 0.3203125 8.136
43/128 0.3359375 8.533
45/128 0.3515625 8.930
47/128 0.3671875 9.327
49/128 0.3828125 9.723
51/128 0.3984375 10.120
53/128 0.4140625 10.517
55/128 0.4296875 10.914
57/128 0.4453125 11.311
59/128 0.4609375 11.708
61/128 0.4765625 12.105
63/128 0.4921875 12.502
65/128 0.5078125 12.898
67/128 0.5234375 13.494
69/128 0.5390625 13.692
71/128 0.5546875 14.089
73/128 0.5703125 14.486
75/128 0.5859375 14.882
77/128 0.6015625 15.280
79/128 0.6171875 15.677
81/128 0.6328125 16.073
83/128 0.6484375 16.470
85/128 0.6640625 16.867
87/128 0.6796875 17.066
89/128 0.6953125 17.661
91/128 0.7109375 18.058
93/128 0.7265625 18.455
95/128 0.7421875 18.852
97/128 0.7578125 19.248
99/128 0.7734375 19.645
101/128 0.7890625 20.042
103/128 0.8046875 20.439
105/128 0.8203125 20.836
107/128 0.8359375 21.233
109/128 0.8515625 21.630
111/128 0.8671875 22.027
113/128 0.8828125 22.423
115/128 0.8984375 22.622
117/128 0.9140625 23.416
119/128 0.9296875 23.614
121/128 0.9453125 24.011
123/128 0.9609375 24.408
125/128 0.9765625 24.805
127/128 0.9921875 25.202
1/64 0.015625 0.397
3/64 0.046875 1.191
5/64 0.078125 1.984
7/64 0.109375 2.778
9/64 0.140625 3.572
11/64 0.171875 4.366
13/64 0.203125 5.159
15/64 0.234375 5.953
17/64 0.265625 6.747
19/64 0.296875 7.541
21/64 0.328125 8.334
23/64 0.359375 9.128
25/64 0.390625 9.922
27/64 0.421875 10.716
29/64 0.453125 11.509
31/64 0.484375 12.303
33/64 0.515625 13.097
35/64 0.546875 13.891
37/64 0.578125 14.684
39/64 0.609375 15.478
41/64 0.640625 16.272
43/64 0.671875 17.264
45/64 0.703125 17.859
47/64 0.734375 18.653
49/64 0.765625 19.447
51/64 0.796875 20.241
53/64 0.828125 21.034
55/64 0.859375 21.828
57/64 0.890625 22.820
59/64 0.921875 23.416
61/64 0.953125 24.209
63/64 0.984375 25.003
1/32 0.031250 0.794
3/32 0.093750 2.381
5/32 0.156250 3.969
7/32 0.218750 5.556
9/32 0.281250 7.144
11/32 0.343750 8.731
13/32 0.406250 10.319
15/32 0.468750 11.906
17/32 0.531250 13.494
19/32 0.593750 15.081
21/32 0.656250 16.669
23/32 0.718750 18.256
25/32 0.781250 19.844
27/32 0.843750 21.431
29/32 0.906250 23.019
31/32 0.968750 24.606
1/16 0.062500 1.588
3/16 0.187500 4.763
5/16 0.312500 7.938
7/16 0.437500 11.113
9/16 0.562500 14.288
11/16 0.687500 17.463
13/16 0.812500 20.638
15/16 0.937500 23.813
1/8 0.125000 3.175
3/8 0.375000 9.525
5/8 0.625000 15.875
7/8 0.875000 22.225
1/4 0.250000 6.350
3/4 0.750000 19.050
1/2 0.500000 12.700
1 1.000000 25.400
Inch   Millimeter  
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