Ingredient Density Dataset — Cup-to-Gram Conversions for 58 Common Cooking Ingredients

An open reference dataset of grams per US cup (and per tablespoon) for 58 common baking and cooking ingredients, grouped by category. A cup is a volume, but ingredients have very different densities (1 cup of flour is ~120 g while 1 cup of honey is ~340 g), so converting recipes by volume alone is inaccurate. This dataset provides the per-ingredient density needed to convert correctly. An interactive, density-adjusted version is available as a free cups-to-grams converter, part of Ingredient Calculator, an ad-light cooking-math toolkit. Columns: ingredient, category, grams_per_us_cup, grams_per_tbsp, notes. License: CC0 / public domain.