Written as an equation, this relationship is represented as: 1 in = 25. 4 mm This official, standardized measurement has been set on international records since 1959. Both inches and millimeters are units of measurement. Inches belong to the English system of measurement, while millimeters belong to the metric system of measurement. While inches are used in the United States, you will often need to convert this unit of measurement to one belonging to the metric system (like millimeters) for scientific purposes. Conversely, there are 0. 0393700787402 inches in one millimeter. [3] X Research source

This measurement will then be converted into millimeters by comparing it to the relationship between inches and millimeters. Example: 7 inches

The inches value in this ratio needs to be placed in the denominator since it will have to cancel out the inches value in your original measurement. Once all the inches are canceled out, the millimeters will be the only remaining unit of measurement. Example: 7 in * (25. 4 mm / 1 in) = 177. 8 mm * (in/in) = 177. 8 mm

Example: 177. 8 mm

Note that the millimeter marks on a ruler are all the small dashes in between the larger centimeter measurements. There should be 10 mm per 1 cm.

Go to the website and locate the conversion boxes. Type the numbers into their respective boxes and select the units you are trying to convert, if necessary. Hit the “Calculate” button or other corresponding button to be shown the answer. Websites that will calculate this conversion for you include: MetricConversions. Org (http://www. metric-conversions. org/length/inches-to-millimeters. htm) CheckYourMath. Com (http://www. checkyourmath. com/convert/length/inches_mm. php) Additionally, you can type the problem (i. e. , 7 in = mm) directly into most major search engines, including Google and Bing, and the search engine should be able to convert the problem and return the answer to you on the results page.

1/64 in = 0. 3969 mm 1/32 in = 0. 7938 mm 1/16 in = 1. 5875 mm 1/8 in = 3. 1750 mm 1/4 in = 6. 3500 mm 1/2 in = 12. 7000 mm 3/4 in = 19. 0500 mm 7/8 in = 22. 2250 mm 15/16 in = 23. 8125 mm 31/32 in = 24. 6062 mm 63/64 in = 25. 0031 mm 1 in = 25. 4001 mm 1 1/8 in = 28. 5750 mm 1 1/4 in = 31. 7500 mm 1 3/8 in = 34. 9250 mm 1 1/2 in = 38. 1000 mm 1 5/8 in = 41. 2750 mm 1 3/4 in = 44. 4500 mm 2 in = 50. 8000 mm 2 1/4 in = 57. 1500 mm 2 1/2 in = 63. 5000 mm 2 3/4 in = 69. 8500 mm 3 in = 76. 2000 mm 3 1/4 in = 82. 5500 mm 3 1/2 in = 88. 9000 mm 3 3/4 in = 95. 2500 mm 4 in = 101. 6000 mm 4 1/2 in = 114. 3000 mm 5 = 127. 0000 mm 5 1/2 in = 139. 7000 mm 6 in = 152. 4000 mm 8 in = 203. 2000 mm 10 in = 254. 0000 mm

Example: 7 in * (2. 54 cm / 1 in) = 17. 78 cm Note that the number of centimeters will be one decimal place larger than the number of millimeters. If you have the number of millimeters, you can also find the number of centimeters by shifting the decimal place one numeral over to the left.

Example: 7 in * (0. 0254 m / 1 in) = 0. 1778 m Note that the number of meters will be three decimal places larger than the number of millimeters. If you have the number of millimeters, you can also find the number of meters by shifting the decimals place three numerals over to the left.

Example: 177. 8 mm * (0. 0393700787 in / 1 mm) = 7 in Example: 177. 8 mm * (1 in / 25. 4 mm) = 7 in

4. 78 in * (25. 4 mm / 1 in) = 121. 412 mm

177 in * (25. 4 mm / 1 in) = 4495. 8 mm

93. 6 in * (25. 4 mm / 1 in) = 2377. 44 mm

93. 6 in * (25. 4 mm / 1 in) = 2377. 44 mm

15. 101 * (25. 4 mm / 1 in) = 383. 5654 mm