Convert White sugar: grams to cups
100 grams of White sugar = 0.505 cups
Amount of White sugar
Density: 0.837 g/ml · White sugar
White sugar: grams to cups at a glance
The amounts people ask for most, worked out for White sugar.
How much White sugar weighs
Every figure below is one measured number — 198 g per US cup — scaled. That is why this table and the converter above it cannot disagree.
One cup, side by side
Is white sugar measured packed or levelled?
Levelled. King Arthur lists granulated white sugar at 198 g per cup with no packing instruction attached — unlike brown sugar, which the same chart marks “packed”. The absence is meaningful: 198 g is a cup filled and levelled off, not pressed down.
Source for White sugar: King Arthur Baking · King Arthur Baking ingredient weight chart
Frequently asked questions
How many cups is 100 grams of White sugar?
100 grams of White sugar is 0.505 cups, because one US cup of White sugar weighs 198 g. That single measured figure is the whole conversion — every other unit on this page is derived from it.
How many grams is 1 cup of White sugar?
1 cup of White sugar is 198 grams. It is the same conversion read backwards, so this page and its reverse always agree.
Why doesn't a cup of White sugar weigh the same as a cup of anything else?
Because a cup is a fixed volume — 236.588 ml — and what it weighs depends entirely on what you put in it. A cup of White sugar is 198 g. The same cup holds 120 g of all-purpose flour, 236.6 g of water, 336 g of honey. Converting without naming the ingredient is guessing, and across this site's ingredients the spread from the lightest cup to the heaviest is fourfold.
Where does dishscale's figure for White sugar come from?
One US cup of White sugar is 198 g. The dataset records that as: “King Arthur Baking”. That is the King Arthur Baking ingredient weight chart. Every ingredient on the site carries the reference its weight came from, so any number here can be checked — and corrected if the source disagrees.