Converting between millimeters (mm) and inches is essential in fields like engineering, manufacturing, and even for everyday tasks around the house. You might need to figure out how to convert one unit to another, even if you’re just trying to figure out what size drill bit to buy.
The metric system (SI) and the Imperial/US customary system are the two most common systems of measurement. This guide will give you a clear and simple explanation of how to convert 9mm to inches.
But let’s get specific: we’re going to show you exactly how to convert 9mm into inches, and we’ll even break down the fractional representation so you know what to do with your conversion.