How much is 30 percent in grams?

To determine how much 30 percent is in grams, you need to know the total weight you are calculating from. For example, if you have 100 grams, then 30 percent would be 30 grams (30% of 100g = 30g). If the total weight is different, simply multiply that weight by 0.30 to find 30 percent in grams.