To convert 10mm to inches, follow these step by step instructions:

Step 1: Understand the conversion factor

In order to convert mm (millimeters) to inches, you need to know the conversion factor, which is 1 millimeter = 0.0393700787 inches. This means that 1 mm is equal to approximately 0.039 inches.

Step 2: Write down the given value

Write down the given value, which is 10mm.

Step 3: Set up the conversion equation

To convert mm to inches, you need to set up the equation as follows:

10mm x 0.0393700787in = ?in

Step 4: Cancel out the unit

Since mm is in the numerator and denominator, you can cancel them out, leaving you with:

10 x 0.0393700787in = ?in

Step 5: Multiply

Multiply 10 by 0.0393700787 to get the conversion value in inches:

10 x 0.0393700787 = 0.393700787in

Step 6: Round off the value (optional)

You can round off the value to make it easier to read and understand. In this case, the rounded off value is 0.394in.

Step 7: Add the unit

To properly express the converted value, you need to add the unit inches (in). Therefore, the final answer is:

10mm = 0.394in

Step 8: Check your work

To ensure that you have converted correctly, you can double check your work by plugging in the values into a conversion calculator. This will verify that your answer is correct.

And there you have it, the step by step instructions on how to convert 10mm to inches. Just remember to always set up the conversion equation properly and cancel out any similar units before multiplying. Happy converting!