Decimal Equivalent Table

16 ths. 32 nds. 64 ths.

EQUIV.

SQ.

SQUARE
ROOT

CIRCLES

METRIC EQUIV.
IN MM

CIRCUM.

AREA
1/64 .015625 .00024 .125 0.0491 .0002 0.3969
1/32 .03125 .000976 .1768 0.0982 .0008 0.7938
3/64 .046875 .002197 .2165 0.1473 .0017 1.1906
1/16 .0625 .003906 .25 0.1964 .0031 1.5870
5/64 .078124 .006104 .2795 0.2454 .0048 1.9844
3/32 .09375 .008789 .3062 0.2945 .0059 2.3813
7/64 .109375 .01195 .3307 0.3436 .0094 2.7761
1/8 .125 .015625 .3535 0.3927 .0123 3.1750
9/64 .140625 .01978 .375 0.4418 .0155 3.5719
5/32 .15625 .02441 .3953 0.4909 .0192 3.9688
11/64 .171875 .02954 .4145 0.5400 .0232 4.3658
3/16 .1875 .03516 .433 0.5890 .0276 4.7625
13/64 .203125 .04126 .4507 0.6381 .0324 5.1594
7/32 .21875 .04785 .4677 0.6872 .0376 5.5563
15/64 .234375 .05493 .4841 0.7363 .0431 5.9531
1/4 .25 .0625 .5 0.7854 .0491 6.3500
17/64 .265625 .07056 .5154 0.8345 .0554 6.7469
9/32 .28125 .07910 .5303 0.8836 .0621 7.1438
19/64 .296875 .08813 .5449 0.9327 .0692 7.5406
5/16 .3125 .09766 .5590 0.9817 .0767 7.9375
21/64 .328125 .1077 .5728 1.0308 .0846 8.3344
11/32 .34375 .1182 .5863 1.0799 .0928 8.7313
23/64 .359375 .1291 .5995 1.1290 .1014 9.1281
3/8 .375 .1406 .6124 1.1781 .1105 9.5250
25/64 .390625 .1526 .625 1.2272 .1198 9.9219
13/32 .40625 .165 .6374 1.2763 .1296 10.3188
27/64 .421875 .178 .6495 1.3254 .1398 10.7156
7/16 .4375 .1914 .6614 1.3745 .1503 11.1125
29/64 .453125 .2053 .6732 1.4235 .1613 11.5094
15/32 .46875 .2197 .6847 1.4726 .1726 11.9063
31/64 .484375 .2348 .696 1.5217 .1843 12.3031
1/2 .5 .25 .7071 1.5708 .1964 12.7000
33/64 .515625 .2659 .7181 1.6199 .2088 13.0969
17/32 .53125 .2822 .7289 1.6690 .2217 13.4938
35/64 .546875 .2991 .7395 1.7181 .2349 13.8906
9/16 .5625 .3164 .75 1.7672 .2485 14.2875
37/64 .578125 .3342 .7603 1.8162 .2625 14.6844
19/32 .59375 .3525 .7706 1.8653 .2769 15.0813
39/64 .609375 .3713 .7806 1.9144 .2916 15.4781
5/8 .625 .3906 .7906 1.9635 .3068 15.8750
41/64 .640625 .4140 .8004 2.0126 .3223 16.2719
21/32 .65625 .4307 .8101 2.0617 .3382 16.6688
43/64 .671875 .4514 .8197 2.1108 .3545 17.0656
11/16 .6875 .4727 .8292 2.1598 .3712 17.4625
45/64 .703124 .4944 .8385 2.2089 .3883 17.8594
23/32 .71875 .5166 .8478 2.2580 .4057 18.2563
47/64 .734375 .5393 .8569 2.3071 .4236 18.6531
3/4 .75 .5625 .866 2.3562 .4416 19.0500
49/64 .765625 .5862 .875 2.4053 .4604 19.4469
25/32 .78125 .6104 .8839 2.4544 .4794 19.8438
51/64 .796875 .635 .8927 2.5035 .4987 20.2406
13/16 .8125 .6602 .9014 2.5525 .5185 20.6375
53/64 .828125 .6858 .91 2.6016 .5386 21.0344
27/32  .84375 .7119 .9186 2.6507 .5591 21.4313
55/64  .859375 .7385 .927 2.6998 .5800 21.8281
7/8  .875 .7656 .9354 2.7489 .6013 22.2250
57/64  .890625 .7932 .9437 2.7980 .6230 22.6219
29/32 .90625 .6213 .952 2.8471 .6450 23.0188
59/64 .921875 .8499 .9601 2.8962 .6675 23.4156
15/16 .9375 .8789 .9682 2.9452 .6903 23.8125
61/64 .953125 .9084 .9763 3.9943 .7135 24.2094
31/32 .96875 .9364 .9843 3.0434 .7371 24.6053
63/64 .984375 .969 .9922 3.0925 .7610 25.0031
1 1.0000 1.0000 1.0000 3.1416 .7854 25.4000