### How do you convert 1 millimeter into inches?

1 mm to Inches To convert 1 millimeter to inches, you have to find out how many inches equals one millimeter. You can do that by looking it up in a math book, typing "millimeters to inches" in a search box of an online search engine, or looking in the measurements section of most dictionaries. 1 millimeter equals 0.0393700787 inches, but you can round it to 0.04 (or to any place value that you'd like)…