Pounds to Cups Converter

Enter pounds and select your ingredient — this Pounds to Cups Converter calculates the equivalent cup measurement based on that ingredient's density. Choose from common baking staples like all-purpose flour, granulated sugar, butter, water, and more. The result shows your cups value plus the density used so you understand exactly how the conversion was made. Also try the ml to Grams Calculator.

lb

Enter the weight in pounds you want to convert.

Select the ingredient to use its density for conversion.

g/mL

Only used when 'Custom' ingredient is selected above.

Most recipes use US cups. UK recipes may use imperial cups.

Results

Cups

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Ingredient Density Used

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Cups per Pound

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Weight in Grams

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Results Table

Frequently Asked Questions

How many cups are in a pound?

It depends on the ingredient. For water, 1 pound equals about 1.92 US cups. For all-purpose flour, 1 pound is approximately 3.62 cups, and for granulated sugar it's about 2.26 cups. Because pounds measure weight and cups measure volume, the density of each ingredient determines the conversion. See also our Cooking Measurement Converter.

How do I convert pounds to cups?

Use the formula: cups = (pounds × 453.592) ÷ (density in g/mL × cup volume in mL). First find the ingredient's density in g/mL, then divide the weight in grams by the volume of one cup. Our calculator handles this automatically when you select your ingredient.

How many cups are in a pound of butter?

One pound of butter equals approximately 2 US cups, since butter has a density of about 0.911 g/mL. A standard US stick of butter is ½ cup, so one pound contains 4 sticks or 2 cups.

How many cups are in a pound of flour?

One pound of all-purpose flour equals roughly 3.62 US cups. Bread flour yields about 3.49 cups per pound, and cake flour gives approximately 4.0 cups per pound due to its lighter texture and lower density. You might also find our Cups to Grams Converter useful.

How many cups are in a pound of sugar?

One pound of granulated sugar equals about 2.26 US cups. Powdered (confectioners') sugar is lighter, measuring around 3.63 cups per pound, while packed brown sugar comes in at roughly 2.34 cups per pound.

What is the difference between a US cup and a UK (imperial) cup?

A US cup holds 236.588 mL, a metric cup holds 250 mL, and a UK imperial cup holds approximately 284.131 mL. This means a UK cup is about 20% larger than a US cup, so always check which measurement system your recipe uses to get accurate results.

Why can't I just use a fixed cups-per-pound ratio for all ingredients?

Because every ingredient has a different density. A pound of feather-light cake flour takes up much more space than a pound of dense honey or salt. Using a single conversion factor would lead to significant measurement errors in baking and cooking.

How many cups are in half a pound?

For half a pound (0.5 lb) of all-purpose flour, you get about 1.81 cups. For half a pound of granulated sugar, expect around 1.13 cups, and for half a pound of butter you'll have approximately 1 cup. Use the converter above to get the exact result for any ingredient.