100mm is 10cm, or 1/10th of a metre. 1 metre would be 1000mm There are 10mm in every 1cm, so10 x 10 = 100There are 100mm in 10cm 1 cm = 10 mm ⇒ 100 cm = 100 x 10 mm = 1000 mm, To convert millimeters to inches, you need to know that 1 inch is equal to 25.4 millimeters. Therefore, to convert 128 mm to inches, you would divide 128 by 25.4. This calculation results in , 95 mm equates to approximately 3.74 inches. Direct Conversion Formula is 95 mm * 1 in 25.4 mm = 3.74015748., There are 3.93700787 inches in 100 millimeters.100 millimeters x 0.0393700787 inches/1 millimeter = 3.93700787 inches1 millimeter = 0.0393700787 inchesDirect Conversion Formula100 mm*1 in25.4 mm=3 , 1200 mm equals how many inches? 1200 mm equals 120 cm, and 120 cm is just over 42 inches. Direct Conversion Formula1,200 mm* 1 in 25.4 mm = 47.24409449 in, Answer: roughly 1.732 inches For reference: 1 inch = 25.4mm For quick conversions, try Google. It knows you are asking for a calulation if you start a search with the word convert..