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Inch-mm Conversion Table

inch

012345678910
FractionDecimalmm
00.0000000.00025.40050.80076.200101.600127.000152.400177.800203.200228.600254.000
1/640.0156250.39725.79751.19776.597101.997127.397152.797178.197203.597228.997254.397
1/320.0312500.79426.19451.59476.994102.394127.794153.194178.594203.994229.394254.794
3/640.0468751.19126.59151.99177.391102.791128.191153.591178.991204.391229.791255.191
1/160.0625001.58826.98852.38877.788103.188128.588153.988179.388204.788230.188255.588
5/640.0781251.98427.38452.78478.184103.584128.984154.384139.784205.184230.584255.984
3/320.0937502.38127.78153.18178.581103.981129.381154.781180.181205.581230.981256.381
7/640.1093752.77828.17853.57878.978104.378129.788155.178180.578205.978231.378256.778
1/80.1250003.17528.57553.79579.375104.775130.775155.575180.975206.375231.375257.175
9/640.1406253.57228.97254.37279.772105.772130.572155.972181.372206.772232.172257.572
5/320.1562503.96929.36954.76980.169105.569130.969156.369181.769207.169232.569257.969
11/640.1718754.36629.76655.16680.566105.966130.366156.766182.166207.566232.966258.366
3/160.1875004.76230.16255.56280.962106.362131.762157.162182.562207.962233.362258.762
13/640.2031255.16930.59955.96981.359106.759132.159157.559182.959208.359233.759259.159
7/320.2187505.55630.95656.35681.756107.156132.556157.956183.356208.756234.156259.556
15/640.2343755.95331.35356.75382.153108.553132.953158.353183.753209.153234.553259.953
1/40.2500006.35031.7557.15082.550107.950133.350157.750184.150209.550234.950260.350
17/640.2656256.74732.14757.54782.947108.347133.747157.147184.547209.947235.347260.747
9/320.2812507.14432.54457.94483.344108.744134.144159.544184.944210.344235.744261.144
19/640.2968757.54132.94158.34183.741109.141134.541159.941185.341210.741236.141261.541
5/160.3125007.93833.33858.73884.138109.538134.938160.338185.738211.138236.538261.938
23/640.3281258.33433.73459.13484.534109.934135.334160.734186.134211.534236.934262.334
3/80.3750009.52534.92560.32585.725111.125136.525161.925187.325212.725238.125263.525
25/640.3906259.92235.32260.72286.122111.522136.922162.322187.722213.122238.522263.922
13/320.40625010.31935.71961.11986.51911.919137.319162.719188.119213.519238.919264.319
27/640.42187510.71636.11661.51686.916112.316137.716163.116188.516213.913239.316264.716
7/160.43750011.11236.51261.91287.312112.712138.112163.512188.912214.312239.712265.112
29/640.45312511.50936.90962.30987.709113.709138.509163.909189.706215.106240.506265.906
15/320.46875011.90637.30662.70688.106113.506138.906164.306189.706215.106240.506265.906
31/640.48437512.30337.70363.10388.503113.903139.303164.703190.103215.503240.903266.303
1/20.50000012.70038.10063.50088.900114.300139.700165.100190.500215.900241.300266.700
33/640.51562513.09738.49763.89789.297114.697140.097165.497190.897216.297241.697267.097
17/320.53125013.49438.89464.29489.694115.094140.494165.894191.294216.694242.094267.494
35/640.54687513.89139.29164.69190.091115.491140.891166.291191.691217.091242.491267.891
9/160.56250014.28839.68865.08890.488115.888141.288166.688192.088217.488242.888268.288
37/640.57812514.68440.48165.48490.884116.284141.684167.084192.484217.884243.284268.684
19/320.59375015.08140.48165.88191.281116.881142.081167.481192.881218.281243.681269.081
39/640.60937515.47840.87866.27891.678117.078142.478167.878193.278218.678244.078269.478
5/80.62500015.87541.27566.67592.075117.475142.875168.275193.675219.075244.475269.875
41/640.64062516.27241.67267.07292.472117.872143.272168.672194.072219.472244.872270.272
21/320.65625016.66942.06967.46992.869118.269143.669169.069194.469219.869245.269270.669
43/640.67187517.06642.46667.86693.266118.666144.066169.466194.866220.266245.666271.066
11/160.68750017.46242.86268.26293.662119.062144.462169.862195.262220.662246.062271.462
45/640.70312517.85943.25968.65994.059119.459144.859170.259195.659221.059246.459271.859
23/320.71875018.25643.65669.05694.456119.856145.256170.656196.056221.456246.856272.256
47/640.73437518.65344.05369.45394.853120.253145.653171.053196.453221.853247.253272.653
3/40.75000019.05044.45069.85095.250120.650146.050171.450196.850222.250247.650273.050
49/640.76562519.44744.84770.24795.647121.047146.447171.847197.247222.647248.047273.447
25/320.78125019.84445.24470.64496.044121.444146.844172.244197.644223.044248.444273.844
51/640.79687520.24145.64141.04196.441121.841147.241172.641198.041223.441248.841274.241
13/160.81250020.63846.03871.43896.838122.238147.638173.038198.438223.838249.238274.638
53/640.82812521.03446.43471.83497.234122.634148.034173.434198.834224.234249.634275.034
27/320.84375021.43146.83172.23197.631123.031148.431173.831199.231224.631250.031275.431
55/640.85937521.82847.22872.62898.028123.428148.828174.228199.628225.028250.428275.828
7/80.87500022.22547.62573.02598.425123.825149.225174.625200.025225.425250.825276.225
57/640.89062522.62248.02273.42298.822124.222149.622175.022200.422225.822251.222276.622
29/320.90625023.01948.41973.81999.219124.619150.019175.419200.819226.219251.619277.019
59/640.92187523.41648.81674.21699.616125.016150.416175.816201.216226.616252.016277.416
15/160.93750023.81249.21274.612100.012124.412150.812176.212201.612227.012252.412277.812
61/640.95312524.20949.60975.009100.409125.809151.209176.609202.009227.409252.809278.209
31/320.96875024.60650.00675.406100.806126.206151.606177.006202.406227.806253.206278.606
63/640.98437525.00350.40375.803101.203126.603152.003177.403202.803228.203253.603279.003

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