Fraction/decimal/metric Conversion Chart
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1FRACTION/DECIMAL/METRIC CONVERSION CHART
4th
8th
16th 32nd 64th
Inch
MM
4th
8th
16th 32nd 64th
Inch
MM
1/64
33/64
.016
.397
.516
13.097
1/32
17/32
.031
.794
.531
13.494
3/64
35/64
.047
1.191
.547
13.891
1/16
9/16
.063
1.588
.563
14.288
5/64
37/64
.078
1.984
.578
14.684
3/32
19/32
.094
2.381
.594
15.081
7/64
39/64
.109
2.788
.609
15.478
1/8
5/8
.125
3.175
.625
15.875
9/64
41/64
.141
3.572
.641
16.272
5/32
21/32
.156
3.969
.656
16.669
11/64
43/64
.172
4.366
.672
17.066
3/16
11/16
.188
4.762
.688
17.462
13/64
45/64
.203
5.159
.703
17.859
7/32
23/32
.219
5.556
.719
18.256
15/64
47/64
.234
5.953
.734
18.653
1/4
3/4
.250
6.350
.750
19.050
17/64
49/64
.266
6.747
.766
19.447
9/32
25/32
.281
7.144
.781
19.844
19/64
51/64
.297
7.541
.797
20.241
5/16
13/16
.313
7.938
.812
20.638
21/64
53/64
.328
8.334
.828
21.034
11/32
27/32
.344
8.731
.844
21.431
23/64
55/64
..359
9.128
.859
21.828
3/8
7/8
.375
9.525
.875
22.225
25/64
57/64
.391
9.922
.891
22.622
13/32
29/32
.406
10.319
.906
23.019
27/64
59/64
.422
10.716
.922
23.416
7/16
15/16
.439
11.112
.938
23.812
29/64
61/64
.453
11.509
.953
24.209
15/32
31/32
.469
11.906
.969
24.606
31/64
63/64
.484
12.303
.984
25.003
1/2
1
.500
12.700
1.000
25.400
Pooley Inc.
207 West Huron Street
Buffalo, NY 14201
PH:(800) 428-2606
FAX:(716) 852-3788
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