Please find below How To Information on how to convert a clothing and apparel garment size from inches standard measurement to centimeter metric measurement. Why would you need this information? Different countries use different measurement system standards for apparel and clothing garment measurement. Sizing Information Chart Clothing and Apparel Standard to Metric (centimeter) & Metric (centimeter) to Standard Inches in Centimeters sizing conversion chart info for even sizes. For odd sizes or sizes not listed. Multiply inch measurement by 2.54 to get centimeter (metric) measurement. example: 30 x 2.54=76.2, then round to nearest digit or 76cm. As a courtesy we have provided an odd size chart further down on this page. In=Cm 20=51 (50.80) 22=56 (55.88) 24=61 (60.96) 26=66 (66.04) 28=71 (71.12) 30=76 (76.20) 32=81 (81.28) 34=86 (86.36) 36=91 (86.36) 38=97 (96.52) 40=102 (101.60) 42=107 (106.68) 44=112 (111.76) 46=117 (116.84) 48=122 (121.92) 50=127 (127.00) 52=132 (132.08) 54=137 (137.16) 56=142 (142.24) 58=147 (147.32) 60=152 (152.40) To get standard size in inches from centimeter (metric). Take centimeter measurement and divide by 2.54 and the round to nearest single digit if you like. example: 117cm / 2.54=46.06, then round to nearest digit, or 46 inch. Inches in Centimeters sizing conversion chart info for odd sizes. 21=53 (53.34) 23=58 (58.42) 25=63 (63.50) 27=69 (68.58) 29=74 (73.66) 31=79 (78.74) 33=84 (83.82) 35=89 (88.90) 37=94 (93.98) 39=99 (99.06) 41=104 (104.14) 43=109 (109.22) 45=114 (114.30) 47=119 (119.38) 49=124 (124.46) 51=130 (129.54) 53=135 (134.62) 55=140 (139.70) 57=145 (144.78) 59=150 (149.86)