About Cooking Measure
Cooking Measure is a small, independent site for one job: turning recipe weights into cups and back again without guessing. It started because the grams-to-cups tools we used gave different answers for the same flour and rarely said where their numbers came from.
How the numbers are made
Every ingredient weight on the site lives in one data file. 42 of the 45 weights are taken from the portion data in USDA FoodData Central; 3 come from the King Arthur Baking ingredient weight chart where USDA has no usable cup weight. Each table row and every calculator result links to its source. The calculator, the charts and the written answers all read from that same file, so they cannot disagree with each other.
We do not estimate, average or "adjust" a source's number. If we cannot find a published per-cup weight for an ingredient, it is not on the site yet.
Corrections
If a number looks wrong, or your bag of flour weighs something different, please tell us with the brand and how you measured. Last full check of the data: .