Ingredient Density Table
This is the master density table for every ingredient on this site. Each value is sourced from at least one authoritative reference (King Arthur, USDA FoodData Central, BBC GoodFood). When sources disagreed, we triangulated to the most commonly-cited value.
If you spot a discrepancy or have a source to suggest, the contact info is on our About page.
| Ingredient | g per cup | g per cup (packed) | Notes | Sources |
|---|---|---|---|---|
| All-Purpose Flour | 120 | Sifted; unsifted is 125g/cup | King Arthur Ingredient Weight Chart;USDA FDC #169761 | |
| Brown Sugar | 213 | 213 | Always packed for baking; unpacked is approx 145g/cup | King Arthur Ingredient Weight Chart;USDA FDC #169687 |
| Butter | 227 | 1 cup = 2 sticks = 16 tbsp | USDA FDC #173410;King Arthur Ingredient Weight Chart | |
| Granulated Sugar | 200 | Standard granulated; not packed | USDA FDC #169655;BBC GoodFood Conversion Chart | |
| Rolled Oats | 90 | Not instant or steel-cut | USDA FDC #173904;BBC GoodFood Conversion Chart |