How much does 300 cc weight?

The weight of 300 cc (cubic centimeters) of a substance depends on its density. For example, 300 cc of water weighs approximately 300 grams, since the density of water is about 1 gram per cc. However, for other substances, the weight will vary according to their specific densities. To find the weight, you can multiply the volume (in cc) by the substance's density (in grams per cc).