Ratio: Same weight; or make cake flour: 1 cup AP flour minus 2 tbsp, plus 2 tbsp cornstarch.
| All-purpose flour (cups) | All-purpose flour (g) | Cake flour (cups) | Cake flour (g) |
|---|---|---|---|
| 1/8 | 15 | 0.12 | 15 |
| 1/4 | 30 | 0.25 | 30 |
| 1/3 | 40 | 0.33 | 40 |
| 1/2 | 60 | 0.5 | 60 |
| 2/3 | 80 | 0.67 | 80 |
| 3/4 | 90 | 0.75 | 90 |
| 1 | 120 | 1 | 120 |
| 1 1/2 | 180 | 1.5 | 180 |
| 2 | 240 | 2 | 240 |
Gram weights use 120 g per cup of all-purpose flour and 120 g per cup of cake flour. Convert other amounts on the all-purpose flour and cake flour pages.