About CupGrams
CupGrams is a free kitchen-conversion reference. Most cups-to-grams charts online don't say where their numbers come from, so we use one documented, public source: the US Department of Agriculture's FoodData Central (SR Legacy). Every ingredient page names the exact USDA record and portion it uses.
The site is built and maintained with the help of automated tools and is reviewed by its owner. The conversions are computed directly from the source data, so a fix in the data updates every page that uses it.
Corrections
Spotted a wrong number or missing ingredient? Tell us. A contact address will be published here when the site moves to its own domain.
Disclaimer
Weights are averages for typical products and measuring methods. They are not nutrition or allergy advice.