Convert cups, tablespoons and teaspoons to grams for common baking ingredients — useful for precise, repeatable baking.
A "cup" is a volume measure, not a weight measure — so how many grams a cup equals depends entirely on how densely the ingredient is packed. One cup of butter weighs more than double one cup of flour, since butter is far denser:
This is why there's no single universal "cup to grams" conversion — the correct figure always depends on which ingredient is involved.
Because a cup measures volume, not weight. Flour is lighter and less densely packed than sugar, so a given volume of flour weighs less than the same volume of sugar.
Because how flour is packed into a measuring cup (packed down versus loosely spooned) can cause up to a 20–25% variation in actual weight. A kitchen scale gives a far more consistent and accurate result, especially important in baking where ratios between ingredients matter a lot.
A tablespoon (tbsp) is 3 times the size of a teaspoon (tsp) in the US measuring system — 1 tbsp = 3 tsp = 1/16 cup, while 1 tsp = 1/48 cup.