英寸[in]英寸（英语：inch，缩写为in），是英制及美制中的长度单位。1英寸等于1⁄12 英尺，亦等于1⁄36 码。按照现行国际码的定义，1英寸严格等于2.54厘米。

厘米[cm]厘米（亦称作公分）是十进制长度计算单位，符号为cm。

英寸[in]到厘米[cm]的转换表英寸[in]厘米[cm]英寸[in]到厘米[cm]1 [in]2.54 [cm]1英寸[in]等于2.54厘米[cm]2 [in]5.08 [cm]2英寸[in]等于5.08厘米[cm]3 [in]7.62 [cm]3英寸[in]等于7.62厘米[cm]4 [in]10.16 [cm]4英寸[in]等于10.16厘米[cm]5 [in]12.7000000001 [cm]5英寸[in]等于12.7000000001厘米[cm]6 [in]15.2400000001 [cm]6英寸[in]等于15.2400000001厘米[cm]7 [in]17.7800000001 [cm]7英寸[in]等于17.7800000001厘米[cm]8 [in]20.3200000001 [cm]8英寸[in]等于20.3200000001厘米[cm]9 [in]22.8600000001 [cm]9英寸[in]等于22.8600000001厘米[cm]10 [in]25.4000000001 [cm]10英寸[in]等于25.4000000001厘米[cm]11 [in]27.9400000001 [cm]11英寸[in]等于27.9400000001厘米[cm]12 [in]30.4800000001 [cm]12英寸[in]等于30.4800000001厘米[cm]13 [in]33.0200000001 [cm]13英寸[in]等于33.0200000001厘米[cm]14 [in]35.5600000001 [cm]14英寸[in]等于35.5600000001厘米[cm]15 [in]38.1000000002 [cm]15英寸[in]等于38.1000000002厘米[cm]16 [in]40.6400000002 [cm]16英寸[in]等于40.6400000002厘米[cm]17 [in]43.1800000002 [cm]17英寸[in]等于43.1800000002厘米[cm]18 [in]45.7200000002 [cm]18英寸[in]等于45.7200000002厘米[cm]19 [in]48.2600000002 [cm]19英寸[in]等于48.2600000002厘米[cm]20 [in]50.8000000002 [cm]20英寸[in]等于50.8000000002厘米[cm]21 [in]53.3400000002 [cm]21英寸[in]等于53.3400000002厘米[cm]22 [in]55.8800000002 [cm]22英寸[in]等于55.8800000002厘米[cm]23 [in]58.4200000002 [cm]23英寸[in]等于58.4200000002厘米[cm]24 [in]60.9600000002 [cm]24英寸[in]等于60.9600000002厘米[cm]25 [in]63.5000000003 [cm]25英寸[in]等于63.5000000003厘米[cm]26 [in]66.0400000003 [cm]26英寸[in]等于66.0400000003厘米[cm]27 [in]68.5800000003 [cm]27英寸[in]等于68.5800000003厘米[cm]28 [in]71.1200000003 [cm]28英寸[in]等于71.1200000003厘米[cm]29 [in]73.6600000003 [cm]29英寸[in]等于73.6600000003厘米[cm]30 [in]76.2000000003 [cm]30英寸[in]等于76.2000000003厘米[cm]31 [in]78.7400000003 [cm]31英寸[in]等于78.7400000003厘米[cm]32 [in]81.2800000003 [cm]32英寸[in]等于81.2800000003厘米[cm]33 [in]83.8200000003 [cm]33英寸[in]等于83.8200000003厘米[cm]34 [in]86.3600000003 [cm]34英寸[in]等于86.3600000003厘米[cm]35 [in]88.9000000004 [cm]35英寸[in]等于88.9000000004厘米[cm]36 [in]91.4400000004 [cm]36英寸[in]等于91.4400000004厘米[cm]37 [in]93.9800000004 [cm]37英寸[in]等于93.9800000004厘米[cm]38 [in]96.5200000004 [cm]38英寸[in]等于96.5200000004厘米[cm]39 [in]99.0600000004 [cm]39英寸[in]等于99.0600000004厘米[cm]40 [in]101.6000000004 [cm]40英寸[in]等于101.6000000004厘米[cm]41 [in]104.1400000004 [cm]41英寸[in]等于104.1400000004厘米[cm]42 [in]106.6800000004 [cm]42英寸[in]等于106.6800000004厘米[cm]43 [in]109.2200000004 [cm]43英寸[in]等于109.2200000004厘米[cm]44 [in]111.7600000004 [cm]44英寸[in]等于111.7600000004厘米[cm]45 [in]114.3000000005 [cm]45英寸[in]等于114.3000000005厘米[cm]46 [in]116.8400000005 [cm]46英寸[in]等于116.8400000005厘米[cm]47 [in]119.3800000005 [cm]47英寸[in]等于119.3800000005厘米[cm]48 [in]121.9200000005 [cm]48英寸[in]等于121.9200000005厘米[cm]49 [in]124.4600000005 [cm]49英寸[in]等于124.4600000005厘米[cm]50 [in]127.0000000005 [cm]50英寸[in]等于127.0000000005厘米[cm]51 [in]129.5400000005 [cm]51英寸[in]等于129.5400000005厘米[cm]52 [in]132.0800000005 [cm]52英寸[in]等于132.0800000005厘米[cm]53 [in]134.6200000005 [cm]53英寸[in]等于134.6200000005厘米[cm]54 [in]137.1600000005 [cm]54英寸[in]等于137.1600000005厘米[cm]55 [in]139.7000000006 [cm]55英寸[in]等于139.7000000006厘米[cm]56 [in]142.2400000006 [cm]56英寸[in]等于142.2400000006厘米[cm]57 [in]144.7800000006 [cm]57英寸[in]等于144.7800000006厘米[cm]58 [in]147.3200000006 [cm]58英寸[in]等于147.3200000006厘米[cm]59 [in]149.8600000006 [cm]59英寸[in]等于149.8600000006厘米[cm]60 [in]152.4000000006 [cm]60英寸[in]等于152.4000000006厘米[cm]61 [in]154.9400000006 [cm]61英寸[in]等于154.9400000006厘米[cm]62 [in]157.4800000006 [cm]62英寸[in]等于157.4800000006厘米[cm]63 [in]160.0200000006 [cm]63英寸[in]等于160.0200000006厘米[cm]64 [in]162.5600000007 [cm]64英寸[in]等于162.5600000007厘米[cm]65 [in]165.1000000007 [cm]65英寸[in]等于165.1000000007厘米[cm]66 [in]167.6400000007 [cm]66英寸[in]等于167.6400000007厘米[cm]67 [in]170.1800000007 [cm]67英寸[in]等于170.1800000007厘米[cm]68 [in]172.7200000007 [cm]68英寸[in]等于172.7200000007厘米[cm]69 [in]175.2600000007 [cm]69英寸[in]等于175.2600000007厘米[cm]70 [in]177.8000000007 [cm]70英寸[in]等于177.8000000007厘米[cm]71 [in]180.3400000007 [cm]71英寸[in]等于180.3400000007厘米[cm]72 [in]182.8800000007 [cm]72英寸[in]等于182.8800000007厘米[cm]73 [in]185.4200000007 [cm]73英寸[in]等于185.4200000007厘米[cm]74 [in]187.9600000008 [cm]74英寸[in]等于187.9600000008厘米[cm]75 [in]190.5000000008 [cm]75英寸[in]等于190.5000000008厘米[cm]76 [in]193.0400000008 [cm]76英寸[in]等于193.0400000008厘米[cm]77 [in]195.5800000008 [cm]77英寸[in]等于195.5800000008厘米[cm]78 [in]198.1200000008 [cm]78英寸[in]等于198.1200000008厘米[cm]79 [in]200.6600000008 [cm]79英寸[in]等于200.6600000008厘米[cm]80 [in]203.2000000008 [cm]80英寸[in]等于203.2000000008厘米[cm]81 [in]205.7400000008 [cm]81英寸[in]等于205.7400000008厘米[cm]82 [in]208.2800000008 [cm]82英寸[in]等于208.2800000008厘米[cm]83 [in]210.8200000008 [cm]83英寸[in]等于210.8200000008厘米[cm]84 [in]213.3600000009 [cm]84英寸[in]等于213.3600000009厘米[cm]85 [in]215.9000000009 [cm]85英寸[in]等于215.9000000009厘米[cm]86 [in]218.4400000009 [cm]86英寸[in]等于218.4400000009厘米[cm]87 [in]220.9800000009 [cm]87英寸[in]等于220.9800000009厘米[cm]88 [in]223.5200000009 [cm]88英寸[in]等于223.5200000009厘米[cm]89 [in]226.0600000009 [cm]89英寸[in]等于226.0600000009厘米[cm]90 [in]228.6000000009 [cm]90英寸[in]等于228.6000000009厘米[cm]91 [in]231.1400000009 [cm]91英寸[in]等于231.1400000009厘米[cm]92 [in]233.6800000009 [cm]92英寸[in]等于233.6800000009厘米[cm]93 [in]236.2200000009 [cm]93英寸[in]等于236.2200000009厘米[cm]94 [in]238.760000001 [cm]94英寸[in]等于238.760000001厘米[cm]95 [in]241.300000001 [cm]95英寸[in]等于241.300000001厘米[cm]96 [in]243.840000001 [cm]96英寸[in]等于243.840000001厘米[cm]97 [in]246.380000001 [cm]97英寸[in]等于246.380000001厘米[cm]98 [in]248.920000001 [cm]98英寸[in]等于248.920000001厘米[cm]99 [in]251.460000001 [cm]99英寸[in]等于251.460000001厘米[cm]100 [in]254.000000001 [cm]100英寸[in]等于254.000000001厘米[cm]101 [in]256.540000001 [cm]101英寸[in]等于256.540000001厘米[cm]102 [in]259.080000001 [cm]102英寸[in]等于259.080000001厘米[cm]103 [in]261.620000001 [cm]103英寸[in]等于261.620000001厘米[cm]104 [in]264.1600000011 [cm]104英寸[in]等于264.1600000011厘米[cm]105 [in]266.7000000011 [cm]105英寸[in]等于266.7000000011厘米[cm]106 [in]269.2400000011 [cm]106英寸[in]等于269.2400000011厘米[cm]107 [in]271.7800000011 [cm]107英寸[in]等于271.7800000011厘米[cm]108 [in]274.3200000011 [cm]108英寸[in]等于274.3200000011厘米[cm]109 [in]276.8600000011 [cm]109英寸[in]等于276.8600000011厘米[cm]110 [in]279.4000000011 [cm]110英寸[in]等于279.4000000011厘米[cm]111 [in]281.9400000011 [cm]111英寸[in]等于281.9400000011厘米[cm]112 [in]284.4800000011 [cm]112英寸[in]等于284.4800000011厘米[cm]113 [in]287.0200000011 [cm]113英寸[in]等于287.0200000011厘米[cm]114 [in]289.5600000012 [cm]114英寸[in]等于289.5600000012厘米[cm]115 [in]292.1000000012 [cm]115英寸[in]等于292.1000000012厘米[cm]116 [in]294.6400000012 [cm]116英寸[in]等于294.6400000012厘米[cm]117 [in]297.1800000012 [cm]117英寸[in]等于297.1800000012厘米[cm]118 [in]299.7200000012 [cm]118英寸[in]等于299.7200000012厘米[cm]119 [in]302.2600000012 [cm]119英寸[in]等于302.2600000012厘米[cm]120 [in]304.8000000012 [cm]120英寸[in]等于304.8000000012厘米[cm]121 [in]307.3400000012 [cm]121英寸[in]等于307.3400000012厘米[cm]122 [in]309.8800000012 [cm]122英寸[in]等于309.8800000012厘米[cm]123 [in]312.4200000012 [cm]123英寸[in]等于312.4200000012厘米[cm]124 [in]314.9600000013 [cm]124英寸[in]等于314.9600000013厘米[cm]125 [in]317.5000000013 [cm]125英寸[in]等于317.5000000013厘米[cm]126 [in]320.0400000013 [cm]126英寸[in]等于320.0400000013厘米[cm]127 [in]322.5800000013 [cm]127英寸[in]等于322.5800000013厘米[cm]128 [in]325.1200000013 [cm]128英寸[in]等于325.1200000013厘米[cm]129 [in]327.6600000013 [cm]129英寸[in]等于327.6600000013厘米[cm]130 [in]330.2000000013 [cm]130英寸[in]等于330.2000000013厘米[cm]131 [in]332.7400000013 [cm]131英寸[in]等于332.7400000013厘米[cm]132 [in]335.2800000013 [cm]132英寸[in]等于335.2800000013厘米[cm]133 [in]337.8200000014 [cm]133英寸[in]等于337.8200000014厘米[cm]134 [in]340.3600000014 [cm]134英寸[in]等于340.3600000014厘米[cm]135 [in]342.9000000014 [cm]135英寸[in]等于342.9000000014厘米[cm]136 [in]345.4400000014 [cm]136英寸[in]等于345.4400000014厘米[cm]137 [in]347.9800000014 [cm]137英寸[in]等于347.9800000014厘米[cm]138 [in]350.5200000014 [cm]138英寸[in]等于350.5200000014厘米[cm]139 [in]353.0600000014 [cm]139英寸[in]等于353.0600000014厘米[cm]140 [in]355.6000000014 [cm]140英寸[in]等于355.6000000014厘米[cm]141 [in]358.1400000014 [cm]141英寸[in]等于358.1400000014厘米[cm]142 [in]360.6800000014 [cm]142英寸[in]等于360.6800000014厘米[cm]143 [in]363.2200000015 [cm]143英寸[in]等于363.2200000015厘米[cm]144 [in]365.7600000015 [cm]144英寸[in]等于365.7600000015厘米[cm]145 [in]368.3000000015 [cm]145英寸[in]等于368.3000000015厘米[cm]146 [in]370.8400000015 [cm]146英寸[in]等于370.8400000015厘米[cm]147 [in]373.3800000015 [cm]147英寸[in]等于373.3800000015厘米[cm]148 [in]375.9200000015 [cm]148英寸[in]等于375.9200000015厘米[cm]149 [in]378.4600000015 [cm]149英寸[in]等于378.4600000015厘米[cm]150 [in]381.0000000015 [cm]150英寸[in]等于381.0000000015厘米[cm]151 [in]383.5400000015 [cm]151英寸[in]等于383.5400000015厘米[cm]152 [in]386.0800000015 [cm]152英寸[in]等于386.0800000015厘米[cm]153 [in]388.6200000016 [cm]153英寸[in]等于388.6200000016厘米[cm]154 [in]391.1600000016 [cm]154英寸[in]等于391.1600000016厘米[cm]155 [in]393.7000000016 [cm]155英寸[in]等于393.7000000016厘米[cm]156 [in]396.2400000016 [cm]156英寸[in]等于396.2400000016厘米[cm]157 [in]398.7800000016 [cm]157英寸[in]等于398.7800000016厘米[cm]158 [in]401.3200000016 [cm]158英寸[in]等于401.3200000016厘米[cm]159 [in]403.8600000016 [cm]159英寸[in]等于403.8600000016厘米[cm]160 [in]406.4000000016 [cm]160英寸[in]等于406.4000000016厘米[cm]161 [in]408.9400000016 [cm]161英寸[in]等于408.9400000016厘米[cm]162 [in]411.4800000016 [cm]162英寸[in]等于411.4800000016厘米[cm]163 [in]414.0200000017 [cm]163英寸[in]等于414.0200000017厘米[cm]164 [in]416.5600000017 [cm]164英寸[in]等于416.5600000017厘米[cm]165 [in]419.1000000017 [cm]165英寸[in]等于419.1000000017厘米[cm]166 [in]421.6400000017 [cm]166英寸[in]等于421.6400000017厘米[cm]167 [in]424.1800000017 [cm]167英寸[in]等于424.1800000017厘米[cm]168 [in]426.7200000017 [cm]168英寸[in]等于426.7200000017厘米[cm]169 [in]429.2600000017 [cm]169英寸[in]等于429.2600000017厘米[cm]170 [in]431.8000000017 [cm]170英寸[in]等于431.8000000017厘米[cm]171 [in]434.3400000017 [cm]171英寸[in]等于434.3400000017厘米[cm]172 [in]436.8800000017 [cm]172英寸[in]等于436.8800000017厘米[cm]173 [in]439.4200000018 [cm]173英寸[in]等于439.4200000018厘米[cm]174 [in]441.9600000018 [cm]174英寸[in]等于441.9600000018厘米[cm]175 [in]444.5000000018 [cm]175英寸[in]等于444.5000000018厘米[cm]176 [in]447.0400000018 [cm]176英寸[in]等于447.0400000018厘米[cm]177 [in]449.5800000018 [cm]177英寸[in]等于449.5800000018厘米[cm]178 [in]452.1200000018 [cm]178英寸[in]等于452.1200000018厘米[cm]179 [in]454.6600000018 [cm]179英寸[in]等于454.6600000018厘米[cm]180 [in]457.2000000018 [cm]180英寸[in]等于457.2000000018厘米[cm]181 [in]459.7400000018 [cm]181英寸[in]等于459.7400000018厘米[cm]182 [in]462.2800000018 [cm]182英寸[in]等于462.2800000018厘米[cm]183 [in]464.8200000019 [cm]183英寸[in]等于464.8200000019厘米[cm]184 [in]467.3600000019 [cm]184英寸[in]等于467.3600000019厘米[cm]185 [in]469.9000000019 [cm]185英寸[in]等于469.9000000019厘米[cm]186 [in]472.4400000019 [cm]186英寸[in]等于472.4400000019厘米[cm]187 [in]474.9800000019 [cm]187英寸[in]等于474.9800000019厘米[cm]188 [in]477.5200000019 [cm]188英寸[in]等于477.5200000019厘米[cm]189 [in]480.0600000019 [cm]189英寸[in]等于480.0600000019厘米[cm]190 [in]482.6000000019 [cm]190英寸[in]等于482.6000000019厘米[cm]191 [in]485.1400000019 [cm]191英寸[in]等于485.1400000019厘米[cm]192 [in]487.680000002 [cm]192英寸[in]等于487.680000002厘米[cm]193 [in]490.220000002 [cm]193英寸[in]等于490.220000002厘米[cm]194 [in]492.760000002 [cm]194英寸[in]等于492.760000002厘米[cm]195 [in]495.300000002 [cm]195英寸[in]等于495.300000002厘米[cm]196 [in]497.840000002 [cm]196英寸[in]等于497.840000002厘米[cm]197 [in]500.380000002 [cm]197英寸[in]等于500.380000002厘米[cm]198 [in]502.920000002 [cm]198英寸[in]等于502.920000002厘米[cm]199 [in]505.460000002 [cm]199英寸[in]等于505.460000002厘米[cm]200 [in]508.000000002 [cm]200英寸[in]等于508.000000002厘米[cm]