Pounds to Cups Converter
Free pounds to cups converter for recipe conversions. You've found pounds (lbs) of flour in a recipe, but you're unfamiliar with these units? This pounds to cups converter is the solution. Convert between pounds and cups for flour, sugar, butter, milk, and more. Perfect for baking and cooking measurements.
Last updated: January 23, 2026
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Select an ingredient for which you want to perform the conversion or select Custom ingredient to input its density.
Density is automatically set based on the selected ingredient
Conversion Result
1 lb = 3.624240434177599 US cups
Density: 0.529 g/mL
Pounds to Cups - Flour
Weight is usually more accurate when it comes to measuring the amount of cooking ingredients you need. If you prefer volume units such as cups, you can use our pounds to cups converter! However, you need to remember that the densities of products vary among brands, so the one you have may differ a bit. We've chosen the average value from several sources, so the value should be more or less fine. If your recipe doesn't require high precision, our pounds to cups converter is a safe bet.
| Flour Type | US Cups | UK Cups |
|---|---|---|
| (Wheat) All Purpose | 3.2 | 3.0 |
| (Wheat) For Baking | 4.3 | 4.0 |
| Buckwheat | 2.9 | 2.7 |
| Barley | 3.1 | 3.0 |
| Corn | 3.5 | 3.3 |
| Rye | 2.9 | 2.7 |
| Soy | 2.8 | 2.7 |
| Corn Starch | 2.9 | 2.8 |
| Potato Starch | 2.7 | 2.5 |
Note: These values are approximations. Actual densities may vary based on brand, temperature, and how ingredients are packed. For precise baking, use weight measurements (pounds or grams).
Pounds to Cups, Cups to Pounds - Sugar
| Sugar | US Cups | UK Cups |
|---|---|---|
| Granulated Sugar | 2.3 | 2.1 |
| Powder Sugar | 3.4 | 3.2 |
| Brown Sugar | 2.4 | 2.3 |
| Sugar | Pounds (lb) |
|---|---|
| Granulated Sugar | 0.4 |
| Powder Sugar | 0.3 |
| Brown Sugar | 0.4 |
If you want to know another conversion than one sugar cup to pounds, just use our lbs to cups converter!
How Many Cups in a Pound of Butter? How Many Sticks of Butter in a Pound?
If you're wondering how many sticks of butter in a pound the answer is simple -four. Also, one cup of butter equals two sticks, so one pound of butter is equivalent to two cups:
Quick Conversions for Butter
- • 1/4 pound of butter = 0.5 cup of butter = 1 stick
- • 1/2 pound of butter = 1 cup of butter = 2 sticks
- • 3/4 pound of butter = 1.5 cup of butter = 3 sticks
- • 1 pound of butter = 2 cups of butter = 4 sticks
- • 1.5 pounds of butter = 3 cups of butter = 6 sticks
- • 2 pounds of butter = 4 cups of butter = 8 sticks
Why is butter conversion so straightforward? Butter is standardized in the US: each stick weighs exactly 4 ounces (0.25 pounds) and equals 0.5 cup. This makes conversions between pounds, cups, and sticks very simple and consistent.
How to Convert Pounds to Cups
To convert pounds to cups, you need to use the ingredient's density. Density is the relationship between mass and volume. The formula is:
volume = mass ÷ density
In practical terms: Cups = (Pounds × 453.592 g/lb) ÷ (Density g/mL × 236.588 ml/cup)
Step-by-Step Instructions
- Select your ingredient - Our calculator includes 18+ common ingredients with pre-set densities
- Enter pounds - Input the weight in pounds (lb)
- Get instant conversion - The calculator automatically converts to cups using the ingredient's density
- Choose cup type - Select US cups (236.59 ml), UK cups (250 ml), or glasses (200 ml)
- Use custom density - For ingredients not listed, select "Custom ingredient" and enter the density in g/mL
Conversion Examples
Given: 2 pounds of all-purpose flour
Weight: 2 × 453.592 = 907.184 g
Density: 0.529 g/mL
Calculation: 907.184 ÷ 0.529 = 1,714 ml = 7.24 cups
Result: 2 lb = 7.24 US cups (approximately 7.2 cups)
Given: 1 pound of granulated sugar
Weight: 1 × 453.592 = 453.592 g
Density: 0.85 g/mL
Calculation: 453.592 ÷ 0.85 = 533.6 ml = 2.25 cups
Result: 1 lb = 2.25 US cups (approximately 2.3 cups)
Given: 1 pound of butter
Weight: 1 × 453.592 = 453.592 g
Density: 0.911 g/mL
Calculation: 453.592 ÷ 0.911 = 497.7 ml = 2.1 cups
Result: 1 lb = 2.1 US cups (exactly 2 cups for practical purposes)
Note: 1 lb butter = 4 sticks = 2 cups
Given: 1 pound of water
Weight: 1 × 453.592 = 453.592 g
Density: 1.0 g/mL
Calculation: 453.592 ÷ 1.0 = 453.592 ml = 1.92 cups
Result: 1 lb = 1.92 US cups (approximately 1.9 cups)
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