How many milliliters are in one cubic centimeter?

One cubic centimeter (cm³) is defined as the volume of a cube with each side measuring one centimeter. The unit of milliliters (mL) is equivalent to cubic centimeters in the metric system, because 1 milliliter is specifically defined as the volume of one cubic centimeter of water at 4 degrees Celsius. Therefore, there is a direct conversion where 1 cm³ equals 1 mL.

This relationship makes it easy to understand why the answer is that there is precisely 1 milliliter in one cubic centimeter. The other options do not reflect this established equivalency in measurement. By grasping this concept, it becomes clearer how volumes can be interconverted within the metric system.