How many millimeters are there in one centimeter?

One centimeter is defined as being equivalent to 10 millimeters. The metric system operates on a base of 10, which makes conversions straightforward. Since a centimeter represents a larger unit than a millimeter, it takes 10 millimeters to equal one centimeter. Therefore, when converting centimeters to millimeters, you multiply by 10. This foundational knowledge in the metric system is crucial for various applications in math and science where precise unit conversions are necessary.