How many times lighter or heavier than a liter is a centiliter?

Answer 1

It is inappropriate to be talking about "lighter" or heavier" with regard to liters and centiliters (or milliliters or deciliters, etc.) Why? Because the liter (and its fractional parts) is a unit of volume or capacity, not weight. You may say that a liter is 100 times greater in volume than a centiliter. You could say that a liter is ten times greater in volume than a deciliter. You could also say that a deciliter is ten times greater in volume than a centiliter. But one is not necessarily heavier or lighter than another. Unless, of course, you have a liter and centiliter of the same substance! A liter of water, for example, will be 100 times heavier than a centiliter of water -- as long as both are at identical temperatures. (Water at 4 degrees Celsius is denser than water at higher and lower temperatures, so a liter of water at 4 degrees C will weigh more than 100 times a centiliter of water at higher or lower temps.)

Answer 2

A centiliter is 100 times lighter than a liter because there are 100 centiliters in one liter.