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Conversion Tables

Imperial to Metric

 1inch = 25.4 mm 1 foot. = 304.8 mm 1 yard = 914.4 mm    



Inch % mm   Inch % mm
0 0 0   ½ 0.5 12.7000
1/64 0.015625 0.3969   33/64 0.515625 13.0969
1/32 0.03125 0.7938   17/32 0.53125 13.34938
3/64 0.046875 1.1906   35/64 0.546875 13.8906
1/16 0.0625 1.5875   9/16 0.5625 14.2875
5/64 0.078125 1.9844   37/64 0.578125 14.6844
3/32 0.09375 2.3812   19/32 0.59375 15.0812
7/64 0.109375 2.7781   39/64 0.609375 15.4781
1/8 0.125 3.1750   5/8 0.625 15.8750
9/64 0.140625 3.5719   41/64 0.640625 16.2719
5/32 0.15625 3.9688   21/32 0.65625 16.6688
11/64 0.171875 4.3656   43/64 0.671875 17.0656
3/16 0.1875 4.7625   11/16 0.6875 17.4625
13/64 0.203125 5.1594   45/64 0.703125 17.8594
7/32 0.21875 5.5562   23/32 0.71875 18.2562
15/64 0.234375 5.9531   47/64 0.734375 18.6531
¼ 0.25 6.3500   ¾ 0.75 19.0500
17/64 0.265625 6.7469   49/64 0.765625 19.4469
9/32 0.28125 7.1438   25/32 0.78125 19.8438
19/64 0.296875 7.54056   51/64 0.796875 20.2406
5/16 0.3125 7.9375   13/16 0.8125 20.6375
21/64 0.328125 8.3344   53/64 0.282125 21.0344
11/32 0.35375 8.7312   27/32 0.84375 21.4312
23/64 0.359375 9.1281   55/64 0.859375 21.8281
3/8 0.375 9.5250   7/8 0.875 22.2250
25/64 0.390625 9.9219   57/64 0.890625 22.6219
13/32 0.40625 10.3188   29/32 0.90625 23.0188
27/64 0.421875 10.7156   59/64 0.921875 23.4156
7/16 0.4375 11.1125   16/16 0.9375 23.8125
29/64 0.453125 11.5094   61/64 0.953125 24.2094
15/32 0.46875 11.9062   31/32 0.96875 24.6062
31/64 0.484375 12.3031   63/64 0.984375 25.0031
             
             

 


Metric to Imperial

   
1 mm = .03937 inch 1 cm = .3937 inch 1 m = 3.281foot

 

 

 

 

 

 mm
inches   mm inches   mm inches
1 0.03937   36 1.41732   260 10.23622
2 0.07874   37 1.45669   270 10.62992
3 0.11811   38 1.49606   280 11.02362
4 0.15748   39 1.53543   290 11.41732
5 0.19685   40 1.57480   300 11.81102
6 0.23622   41 1.61417   310 12.20472
7 0.27559   42 1.65354   320 12.59842
8 0.31496   43 1.69291   330 12.99212
9 0.35433   44 1.73228   340 13.38582
10 0.93970   45 1.77165   350 13.77952
11 0.43307   46 1.81102   360 14.17322
12 0.47244   47 1.85039   370 14.56692
13 0.51181   48 1.88976   380 14.96063
14 0.55118   49 1.92913   390 15.35433
15 0.59055   50 1.96850   400 15.74803
16 0.62992   60 2.36220   410 16.14173
17 0.66929   70 2.75590   420 16.53543
18 0.70866   80 3.14960   430 16.92913
19 0.74803   90 3.54330   440 17.32283
20 0.78740   100 3.9370   450 17.71653
21 0.82677   110 4.33070   460 18.11023
22 0.86614   120 4.72440   470 18.50393
23 0.90551   130 5.11811   480 18.89763
24 0.94488   140 5.51181   490 19.29133
25 0.98425   150 5.90551   500 19.68504
26 1.02362   160 6.29921      
27 1.06299   170 6.69291      
28 1.10236   180 7.08661      
29 1.14173   190 7.48031      
30 1.18110   200 7.87401      
31 1.22047   210 8.26771      
32 1.25984   220 8.66141      
33 1.29921   230 9.05511      
34 1.33858   240 9.44881      
35 1.37795   250 9.84252