CONVERSION CHARTS The following charts are provided for convenience. Generally Huyett parts possessing imperial (inch) based numbers will have all dimensions expressed in inches, while metric number specs will be metric dimensions. As an example, a one foot piece of metric keystock will be called out as 305 millimeters (the metric equivalent of one foot).
Decimal Equivalents of Fractions of an Inch 1/32
0.015 625 0.031 25
3/64 1/16
0.046 875 0.062 5
25/64
5/64
0.078 125
13/32
3/32
0.093 75
27/64
7/64
0.109 375
1/64
11/32
23/64 3/8
0.343 75 0.359 375
43/64
0.671 875-1
11/16
0.687 5
0.375 0.390 625
45/64 23/32
0.703 125 0.718 75
47/64
0.734 375 0.750
0.125
29/64
0.406 25 0.421 875 0.437 5 0.453 125
9/64
0.140 625
15/32
0.468 75
49/64 25/32 51/64
5/32
0.156 25
31/64
0.484 375 0.500
53/64
1/8
7/16
3/4
0.765 625 0.781 25
13/16
0.796 875
3/16
0.171 875 0.187 5
33/64
0.515 625
27/32
0.812 5 0.828 125 0.843 75
13/64
0.203 125
17/32
0.531 25
55/64
0.859 375
0.218 75
35/64
0.546 875
11/64
7/32
15/64 1/4
0.234 375 0.250
17/64 9/32 19/64 5/16 21/64
1/2
7/8
0.875
0.562 S
57/64
37/64
0.578 125
29/32
0.265 625
19/32
0.593 75
59/64
0.890 625 0.906 25 0.921 875
0.281 25
39/64
0.609 375
15/16
0.937 5
0.296 875 0.312 5 0.328 125
5/8
41/64 21/32
0.625 0.640 625
61/64 31/32 63/64
0.953 125 0.968 75 0.984 375
9/16
0.656 25
Metric and English Equivalents Use of Conversion Tables On the following pages, tables are given that permit conversion from English to metric units and vice versa over a wide range of values. Where the desired value cannot be obtained directly from these tables, a simple addition of two or more values taken directly from the table will suffice as shown in the following examples:
Example 1: Find the millimeter equivalent of 0.4.476 inch. .4
in
=
.04
in
=
10.16000 mm 1.01600 mm
.007
in
=
.17780 mm
.0006
in
=
.4476
in
=
.01524 mm 11.36904 mm
Example 2: Find the inch equivalent of 84.9 mm. 80. 4. 0.9
84.9 0 G.1. Htrye:f 2004
mm him mm mm
= = = =
3.14961 in 0.15748 in 0.03543 in 3.34252 in
84
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