# How to Convert Thousandths of an Inch to Metric

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Converting U.S. customary units into metric units may seem like a tough task to take on, especially if you don't consider yourself a math whiz. With the help of a calculator and the right conversion formula, you should be able to convert your measurements with ease. Start by looking at the basic formula, and then plug in your numbers to get the answer you are looking for.

• Calculator

## Instructions

• 1

Convert the 1/1000 inch to .001 inch. One inch is equal to 25.4 millimeters, or mm. Multiply .001 by 25.4 mm. So for every .001 inch, there is .0254 mm.

• 2

Input your own numbers into the formula as needed. For example, if you have 3/1000 inch, your formula would be as follows: .003 inch x .0254 mm = .0762.

• 3

Insert the results you obtained in Step 2 back into the formula to double-check your work.

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## Resources

• Photo Credit calculator image by Randy McKown from Fotolia.com

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