Pounds to Cups Converter

Because the cup is a volume and the pound is a mass, and density connects them. At the estimated densities and the 240 mL US legal cup setting, one pound gives about 3.57 cups of sifted flour or 2.24 cups of granulated sugar. Choose both the ingredient and cup standard used by your recipe.

Because the rest of the conversion is fixed. One pound equals exactly 453.59237 g. The selected cup is exactly 240 mL for US legal or 250 mL for metric, or approximately 236.59 mL for US customary. Density is the variable that changes by ingredient, so both conversion directions need the same density.

Because cup counts change with packing, while the bag's weight does not. At the estimated densities and the 240 mL US legal cup setting, a 5 lb bag fills about 17.86 cups when sifted or about 16 cups when packed. Use weight when repeatable ingredient ratios matter.

Pick a single weight for the lead ingredient (usually flour or the heaviest base) and rescale everything else proportionally. If a cookie recipe calls for 2.5 cups flour and you want to triple it for a holiday batch, the cleanest path is convert 2.5 cups to pounds for that flour state (sifted vs packed) once, multiply by 3, and weigh the result. Working in pounds avoids the cup-counting fatigue of measuring 7.5 cups by repeated 1-cup scoops, and it keeps the ratio with the other ingredients exact when you weigh them in the same units. A digital kitchen scale with a tare button and a 5 kg / 11 lb capacity handles the entire batch in one bowl.

The US customary cup is approximately 236.588 mL, the US legal cup is exactly 240 mL, and the metric cup is exactly 250 mL. Choose the standard used by your recipe. The pound input does not change, but the cup count does.