* Centimeters (cm) measure length or distance.
* Milliliters (ml) measure volume, which is the amount of space something occupies.
To convert between these units, you need more information. For example:
* If you have a container that is 9 centimeters tall, wide, and deep: You'd need to calculate the container's volume (9 cm x 9 cm x 9 cm = 729 cubic centimeters). Then, you could convert cubic centimeters to milliliters (1 cubic centimeter = 1 milliliter). So, in this case, the container would hold 729 milliliters.
Let me know if you can provide more information about the context, and I can help you with the conversion!