inch-mm Conversion table

1"=25.4mm

inch 0 1 2 3 4 5 6 7 8 9 10
Fraction Decimal mm
0 0.000000 0.000 25.400 50.800 76.200 101.600 127.000 152.400 177.800 203.200 228.600 254.000
1/64 0.015625 0.397 25.797 51.197 76.597 101.997 127.397 152.797 178.197 203.597 228.997 254.397
1/32 0.031250 0.794 26.194 51.594 76.994 102.394 127.794 153.194 178.594 203.994 229.394 254.794
3/64 0.046875 1.191 26.591 51.991 77.391 102.791 128.191 153.591 178.991 204.391 229.791 255.191
1/16 0.062500 1.588 26.988 52.388 77.788 103.188 128.588 153.988 179.388 204.788 230.188 255.588
5/64 0.078125 1.984 27.384 52.784 78.184 103.584 128.984 154.384 139.784 205.184 230.584 255.984
3/32 0.093750 2.381 27.781 53.181 78.581 103.981 129.381 154.781 180.181 205.581 230.981 256.381
7/64 0.109375 2.778 28.178 53.578 78.978 104.378 129.788 155.178 180.578 205.978 231.378 256.778
1/8 0.125000 3.175 28.575 53.795 79.375 104.775 130.775 155.575 180.975 206.375 231.375 257.175
9/64 0.140625 3.572 28.972 54.372 79.772 105.772 130.572 155.972 181.372 206.772 232.172 257.572
5/32 0.156250 3.969 29.369 54.769 80.169 105.569 130.969 156.369 181.769 207.169 232.569 257.969
11/64 0.171875 4.366 29.766 55.166 80.566 105.966 130.366 156.766 182.166 207.566 232.966 258.366
3/16 0.187500 4.762 30.162 55.562 80.962 106.362 131.762 157.162 182.562 207.962 233.362 258.762
13/64 0.203125 5.169 30.599 55.969 81.359 106.759 132.159 157.559 182.959 208.359 233.759 259.159
7/32 0.218750 5.556 30.956 56.356 81.756 107.156 132.556 157.956 183.356 208.756 234.156 259.556
15/64 0.234375 5.953 31.353 56.753 82.153 108.553 132.953 158.353 183.753 209.153 234.553 259.953
1/4 0.250000 6.350 31.75 57.150 82.550 107.950 133.350 157.750 184.150 209.550 234.950 260.350
17/64 0.265625 6.747 32.147 57.547 82.947 108.347 133.747 157.147 184.547 209.947 235.347 260.747
9/32 0.281250 7.144 32.544 57.944 83.344 108.744 134.144 159.544 184.944 210.344 235.744 261.144
19/64 0.296875 7.541 32.941 58.341 83.741 109.141 134.541 159.941 185.341 210.741 236.141 261.541
5/16 0.312500 7.938 33.338 58.738 84.138 109.538 134.938 160.338 185.738 211.138 236.538 261.938
23/64 0.328125 8.334 33.734 59.134 84.534 109.934 135.334 160.734 186.134 211.534 236.934 262.334
3/8 0.375000 9.525 34.925 60.325 85.725 111.125 136.525 161.925 187.325 212.725 238.125 263.525
25/64 0.390625 9.922 35.322 60.722 86.122 111.522 136.922 162.322 187.722 213.122 238.522 263.922
13/32 0.406250 10.319 35.719 61.119 86.519 11.919 137.319 162.719 188.119 213.519 238.919 264.319
27/64 0.421875 10.716 36.116 61.516 86.916 112.316 137.716 163.116 188.516 213.913 239.316 264.716
7/16 0.437500 11.112 36.512 61.912 87.312 112.712 138.112 163.512 188.912 214.312 239.712 265.112
29/64 0.453125 11.509 36.909 62.309 87.709 113.709 138.509 163.909 189.706 215.106 240.506 265.906
15/32 0.468750 11.906 37.306 62.706 88.106 113.506 138.906 164.306 189.706 215.106 240.506 265.906
31/64 0.484375 12.303 37.703 63.103 88.503 113.903 139.303 164.703 190.103 215.503 240.903 266.303
1/2 0.500000 12.700 38.100 63.500 88.900 114.300 139.700 165.100 190.500 215.900 241.300 266.700
33/64 0.515625 13.097 38.497 63.897 89.297 114.697 140.097 165.497 190.897 216.297 241.697 267.097
17/32 0.531250 13.494 38.894 64.294 89.694 115.094 140.494 165.894 191.294 216.694 242.094 267.494
35/64 0.546875 13.891 39.291 64.691 90.091 115.491 140.891 166.291 191.691 217.091 242.491 267.891
9/16 0.562500 14.288 39.688 65.088 90.488 115.888 141.288 166.688 192.088 217.488 242.888 268.288
37/64 0.578125 14.684 40.481 65.484 90.884 116.284 141.684 167.084 192.484 217.884 243.284 268.684
19/32 0.593750 15.081 40.481 65.881 91.281 116.881 142.081 167.481 192.881 218.281 243.681 269.081
39/64 0.609375 15.478 40.878 66.278 91.678 117.078 142.478 167.878 193.278 218.678 244.078 269.478
5/8 0.625000 15.875 41.275 66.675 92.075 117.475 142.875 168.275 193.675 219.075 244.475 269.875
41/64 0.640625 16.272 41.672 67.072 92.472 117.872 143.272 168.672 194.072 219.472 244.872 270.272
21/32 0.656250 16.669 42.069 67.469 92.869 118.269 143.669 169.069 194.469 219.869 245.269 270.669
43/64 0.671875 17.066 42.466 67.866 93.266 118.666 144.066 169.466 194.866 220.266 245.666 271.066
11/16 0.687500 17.462 42.862 68.262 93.662 119.062 144.462 169.862 195.262 220.662 246.062 271.462
45/64 0.703125 17.859 43.259 68.659 94.059 119.459 144.859 170.259 195.659 221.059 246.459 271.859
23/32 0.718750 18.256 43.656 69.056 94.456 119.856 145.256 170.656 196.056 221.456 246.856 272.256
47/64 0.734375 18.653 44.053 69.453 94.853 120.253 145.653 171.053 196.453 221.853 247.253 272.653
3/4 0.750000 19.050 44.450 69.850 95.250 120.650 146.050 171.450 196.850 222.250 247.650 273.050
49/64 0.765625 19.447 44.847 70.247 95.647 121.047 146.447 171.847 197.247 222.647 248.047 273.447
25/32 0.781250 19.844 45.244 70.644 96.044 121.444 146.844 172.244 197.644 223.044 248.444 273.844
51/64 0.796875 20.241 45.641 41.041 96.441 121.841 147.241 172.641 198.041 223.441 248.841 274.241
13/16 0.812500 20.638 46.038 71.438 96.838 122.238 147.638 173.038 198.438 223.838 249.238 274.638
53/64 0.828125 21.034 46.434 71.834 97.234 122.634 148.034 173.434 198.834 224.234 249.634 275.034
27/32 0.843750 21.431 46.831 72.231 97.631 123.031 148.431 173.831 199.231 224.631 250.031 275.431
55/64 0.859375 21.828 47.228 72.628 98.028 123.428 148.828 174.228 199.628 225.028 250.428 275.828
7/8 0.875000 22.225 47.625 73.025 98.425 123.825 149.225 174.625 200.025 225.425 250.825 276.225
57/64 0.890625 22.622 48.022 73.422 98.822 124.222 149.622 175.022 200.422 225.822 251.222 276.622
29/32 0.906250 23.019 48.419 73.819 99.219 124.619 150.019 175.419 200.819 226.219 251.619 277.019
59/64 0.921875 23.416 48.816 74.216 99.616 125.016 150.416 175.816 201.216 226.616 252.016 277.416
15/16 0.937500 23.812 49.212 74.612 100.012 124.412 150.812 176.212 201.612 227.012 252.412 277.812
61/64 0.953125 24.209 49.609 75.009 100.409 125.809 151.209 176.609 202.009 227.409 252.809 278.209
31/32 0.968750 24.606 50.006 75.406 100.806 126.206 151.606 177.006 202.406 227.806 253.206 278.606
63/64 0.984375 25.003 50.403 75.803 101.203 126.603 152.003 177.403 202.803 228.203 253.603 279.003