How to convert pounds to cups of flour
Formula: cup = lb × 3.62874
Worked example: 2 lb → 2 × 3.62874 = 7.26 cup
One pound of all-purpose flour is about 3.6 cups, so a 5 lb bag holds about 18 cups.
Pounds to cups of flour conversion chart
| Pounds (lb) | Cups of flour (cup) |
|---|---|
| 0.5 lb | 1.81 cup |
| 1 lb | 3.63 cup |
| 1.5 lb | 5.44 cup |
| 2 lb | 7.26 cup |
| 3 lb | 10.9 cup |
| 4 lb | 14.5 cup |
| 5 lb | 18.1 cup |
| 10 lb | 36.3 cup |
| 25 lb | 90.7 cup |
What is a pound?
The pound, 453.6 grams, is the unit of US flour bags, sold in 2, 5 and 10 lb sizes. A 5 lb bag of all-purpose flour holds about 18 cups.
What is a cup of flour?
A US cup of all-purpose flour, spooned into the cup and leveled with a knife, weighs about 125 g. Scooping straight from the bag packs the flour and can add 20 to 30 g per cup, enough to make cakes dry.