Decimal Equivalents

Fractional * Metric * Wire * Letter Sizes

English Metric Decimal English Metric Decimal English Metric Decimal English Metric Decimal
                       
.. .1 .0039 45 .. .0820 5 .. .2055 7/16 .. .4375
  .2 .0079 44 .. .0860 4 .. .2090 29/64 .. .4531
.. .3 .0118 43 .. .0890 3 .. .2130 15/32 .. .4687
80 .. .0135 42 .. .0935 7/32 . .2187 .. 12. .4724
79 . .0145 3/32 .. .0937 2 .. .2210 31/64 .. .4844
1/64 .. .0156 41 .. .0960 1 .. .2280 1/2 .. .5000
.. .4 .0157 40 .. .0980 A .. .2340 .. 13. .5118
78 . .0160 39 .. .0995 15/64 .. .2344 33/64 .. .5156
77 . .0180 38 .. .1015 .. 6. .2362 17/32 .. .5312
. .5 .0197 37 .. .1040 B .. .2380 35/64 . .5469
76 . .0200 36 .. .1065 C .. .2420 .. 14. .5512
75 . .0210 7/64 .. .1094 D .. .2460 9/16 .. .5625
74   .0225 35 .. .1100 1/4 .. .2500 37/64 .. .5781
. .6 .0236 34 .. .1110 F .. .2570 .. 15. .5906
73 .. .0240 33 .. .1130 G .. .2610 19/32 .. .5937
72 .. .0250 32 .. .1160 17/64 .. .2656 39/64 .. .6094
71 .. .0260 .. 3. .1181 H .. .2660 5/8 .. .6250
.. .7 .0276 31 .. .1200 I .. .2720 .. 16. .6299
70 .. .0280 1/8 .. .1250 .. 7. .2756 41/64 .. .6406
69 .. .0292 30 .. .1285 J .. .2770 21/32 .. .6562
68 .. .0310 29 .. .1360 K .. .2810 .. 17. .6693
1/32 .. .0312 28 .. .1405 9/32 .. .2812 43/64 .. .6719
.. .8 .0315 9/64 .. .1406 L .. .2900 11/16 .. .6875
67 .. .0320 27 .. .1440 M .. .2950 45/64 .. .7031
66 .. .0330 26 . .1470 19/64 .. .2969 .. 18. .7087
65 .. .0350 25 .. .1495 N .. .3020 23/32 .. .7187
. .9 .0354 24 .. .1520 5/16 .. .3125 47/64 .. .7344
64 .. .0360 23 .. .1540 .. 8. .3150 .. 19. .7480
63 .. .0370 5/32 . .1562 O .. .3160 3/4 .. .7500
62 .. .0380 22 .. .1570 P .. .3230 49/64 .. .7656
61 .. .0390 .. 4. .1575 21/64 .. .3281 25/32 .. .7812
.. 1. .0394 21 .. .1590 Q .. .3320 .. 20. .7874
60 .. .0400 20 .. .1610 R .. .3390 51/64 .. .7969
59 .. .0410 19 .. .1660 11/32 .. .3437 13/16 .. .8125
58 .. .0420 18 . .1695 S .. .3480 .. 21. .8268
57 . .0430 11/64 .. .1719 .. 9. .3543 53/64 .. .8281
56 .. .0465 17 .. .1730 T .. .3580 27/32 .. .8437
3/64 .. .0469 16 .. .1770 23/64 .. .3594 55/64 .. .8594
55 .. .0520 15 .. .1800 U .. .3680 .. 22. .8661
54 .. .0550 14 .. .1820 3/8 .. .3750 7/8 .. .8750
53 .. .0595 13 .. .1850 V … .3770 57/64 .. .8906
1/16 . .0625 3/16 .. .1875 W .. .3860 .. 23. .9055
52 .. .0635 12 .. .1890 25/64 .. .3906 29/32 .. .9062
51 .. .0670 11 .. .1910 .. 10. .3937 59/64 .. .9219
50 .. .0700 10 .. .1935 X .. .3970 15/16 .. .9375
49 . .0730 9 .. .1960 Y . .4040 .. 24. .9449
48 .. .0760 .. 5. .1968 13/32 .. .4062 61/64 .. .9531
5/64 .. .0781 8 .. .1990 Z .. .4130 31/32 .. .9687
47 .. .0785 7 .. .2010 27/64 .. .4219 .. 25. .9842
.. 2. .0787 13/64 .. .2031 .. 11. .4331 63/64 .. .9844
46 .. .0810 6 .. .2040       1 25.4 1.000

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Robert J. Brown -- rjbrown@internetwoodworking.com -- December 1997

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