Here's how to convert centiliters (cL) to milliliters (mL):

* Know the relationship: 1 centiliter (cL) is equal to 10 milliliters (mL).

* Conversion: Multiply the number of centiliters by 10.

Calculation:

456 cL * 10 mL/cL = 4560 mL

Therefore, 456 centiliters is equal to 4560 milliliters.