Cup to Gram Converter
Convert cups to grams for accurate cooking and baking measurements. Different ingredients have different densities, so the conversion varies by ingredient type. This calculator provides precise conversions for common baking and cooking ingredients.
1 cup = 8 fluid ounces (US standard measuring cup)
How many grams are in a cup?
The number of grams in a cup depends on the ingredient because different substances have different densities. For example: 1 cup of water = 237g, 1 cup of all-purpose flour = 120g, 1 cup of granulated sugar = 200g, 1 cup of butter = 227g. Always check the specific ingredient for accurate measurements.
Why do cup-to-gram conversions vary by ingredient?
Cups measure volume (space), while grams measure weight (mass). Different ingredients have different densities. A cup of feathers and a cup of rocks occupy the same space but have very different weights. Similarly, a cup of flour weighs much less than a cup of honey because honey is denser.
How many grams is 1 cup of flour?
1 cup of all-purpose flour (unsifted, spooned and leveled) equals approximately 120 grams. However, this can vary: sifted flour is about 115g per cup, bread flour is 127g per cup, and cake flour is 114g per cup. For best baking results, weighing flour is more accurate than measuring by volume.
How many grams is 1 cup of sugar?
1 cup of granulated white sugar equals 200 grams. Brown sugar (packed) is 220 grams per cup, and powdered/confectioners sugar (unsifted) is 120 grams per cup. These measurements assume you're using the proper measuring technique: spoon and level for granulated, firmly packed for brown sugar.
Is it better to measure baking ingredients by weight or volume?
Measuring by weight (grams) is more accurate and consistent than volume (cups), especially for baking. Flour can vary significantly in cups depending on how it's scooped or packed, but 120 grams is always 120 grams. Professional bakers and most international recipes use weight measurements for precision.
How do I convert cups to grams without a scale?
Use a standard measuring cup and the conversion rates for your specific ingredient. However, for best results in baking, invest in a kitchen scale ($10-30). Scales provide accuracy that cups can't match. If you must use cups, always use the "spoon and level" method: spoon ingredient into cup, level off with a knife, don't pack or shake.
What's the difference between fluid ounces and ounces by weight?
Fluid ounces measure volume (like cups), while ounces measure weight (like grams). 1 cup = 8 fluid ounces always, but the weight in ounces varies by ingredient. For example, 1 cup of water = 8 fl oz = 8.35 oz by weight, but 1 cup of flour = 8 fl oz = 4.25 oz by weight. This is why ingredient-specific conversions are essential.