Conversor de Xícara para Libras
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
farinha: 1 cup = 0,275 lb | açúcar: 0,44 | manteiga: 0,5
About this calculator
The Cup to Pounds Converter is a practical tool for converting volume measurements (cups) to weight (pounds) for common kitchen ingredients. Because density varies among ingredients, conversion is not straightforward: one cup of flour weighs about 0.275 pounds, while one cup of sugar weighs 0.44 pounds and one cup of butter weighs 0.5 pounds. The calculator uses these specific conversion factors for each ingredient, ensuring accurate results for recipes that require weight measurements.
To use the tool, simply select the ingredient (flour, sugar, or butter) and enter the amount in cups. The result is automatically displayed in pounds, rounded to two decimal places. This is useful for international recipes that use pounds, or for those who prefer to measure dry ingredients by weight, which is more precise than volume. The calculator can also be used to adjust portions: if a recipe calls for 2 cups of flour, you'll know you need 0.55 pounds.
Important cautions: the conversion is valid only for the listed ingredients and for standard US cups (240 ml). Compacted ingredients (such as sifted vs. unsifted flour) may have different densities. For flour, for example, one unsifted cup may weigh more than 0.275 lb. Always check the ingredient's consistency. If you need conversions for other ingredients, such as cocoa or oats, this calculator does not cover them, but you can look up specific density factors.
Frequently asked questions
Why does the cup to pounds conversion vary by ingredient?
Because each ingredient has a different density. Flour is lighter than sugar, so one cup of flour weighs less than one cup of sugar.
Does this calculator work for cups of any size?
No, it uses the standard US cup of 240 ml. If you use a different cup size, the result will not be accurate.
Can I use it for ingredients like cocoa powder or oats?
No, the calculator only covers flour, sugar, and butter. For other ingredients, you need specific conversion factors.
How do I convert pounds back to cups?
Divide the weight in pounds by the ingredient's conversion factor. For flour: pounds ÷ 0.275 = cups.
Does sifted vs. unsifted flour make a difference?
Yes, density changes. The calculator uses an average value. For best accuracy, sift flour before measuring.