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DECIMAL TO METRIC EQUIVALENT CHART
Fractions of
Decimal (in.)
Metric (mm)
an inch
Fractions of
an inch
Decimal (in.)
Metric (mm)
1/64
0.015625
0.39688
33/64
0.515625
13.09687
1/32
0.03125
0.79375
17/32
0.53125
13.49375
3/64
0.046875
1.19062
35/64
0.546875
13.89062
1/16
0.0625
1.58750
9/16
0.5625
14.28750
5/64
0.078125
1.98437
37/64
0.578125
14.68437
3/32
0.09375
2.38125
19/32
0.59375
15.08125
7/64
0.109375
2.77812
39/64
0.609375
15.47812
1/8
0.125
3.175
5/8
0.625
15.87500
9/64
0.140625
3.57187
41/64
0.640625
16.27187
5/32
0.15625
3.96875
21/32
0.65625
16.66875
11/64
0.171875'
4.36562
43/64
0.671875
17.06562
3/16
0.1875
4.76250
11/16
0.6875
17.46250
13/64
0.203125
5.15937
45/64
0.703125
17.85937
7/32
0.21875
5.55625
23/32
0.71875
18.25625
15/64
0.234375
5.95312
47/64
0.734375
18.65312
1/4
0.250
6.35000
3/4
0.750
19.05000
17/64
.0.265625
6.74687
49/64
0.765625
19.44687
9/32
0.28125
7.14375
25/32
0.78125
19.84375
19/64
0.296875
7.54062
51/64
0.796875
20.24062
5/16
0.3125
7.93750
13/16
0.8125
20.63750
21/64
0.328125
8.33437
53/64
0.828125
21.03437
11/32
0.34375
8.73125
27/32
0.84375
21.43125
23/64
0.359375
9.12812
55/64
0.859375
21.82812
3/8
0.375
9.52500
7/8
0.875
22.22500
25/64
0.390625
9.92187
57/64
0.890625
22.62187
13/32
0.40625
10.31875
29/32
0.90625
23.01875
27/64
0.421875
10.71562
59/64
0.921875
23.41562
7/16
0.4375
11.11250
15/16
0.9375
23.81250
29/64
0.453125
11.50937
61/64
0.953125
24.20937
15/32
0.46875
11.90625
31/32
0.96875
24.60625
31/64
0.484375
12.30312
63/64
0.984375
25.00312
1/2
0.500
12.70000
1
1.00
25.40000
Engines & Generators
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