How many leters in a centileter?

A centiliter (cl) is a unit of volume equal to one-hundredth of a liter. Since there are 1,000 milliliters in a liter, a centiliter is equivalent to 10 milliliters. Therefore, a centiliter itself does not contain "letters" but rather is a measurement of volume. If you meant "liters" instead, a centiliter is 0.01 liters.