Five hundred grams is about 4.17 cups of all-purpose flour, 2.53 cups of granulated sugar and 2.20 cups of butter. At this size, even a small cup-measuring error can become noticeable in the finished recipe.
Use a kitchen scale for half-kilogram quantities whenever possible. Repeatedly filling a cup can introduce a different packing level each time, especially with flour, cocoa and powdered sugar.
This weight is common in bread, pizza dough, batch baking and ingredient packages. Treat the cup results as practical US volume equivalents while preserving the original 500 gram value for precision.