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1 cup of sugar in grams

One US cup of granulated (white) sugar weighs about 200 grams. Packed brown sugar is about 220 g and powdered (icing) sugar about 120 g. Pick your sugar and amount below for the exact weight — or read the full chart, with tablespoons and calories, further down.

Weight200grams
Ounces7.1oz
Calories774kcal

1 cup of granulated sugar = 200 g. Scoop-and-level average; packing the cup can add up to 20%.

200 g1 cup white / granulated sugar
220 g1 cup brown sugar, packed
120 g1 cup powdered / icing sugar

Cups of sugar to grams — full chart

Weights are for a US cup (240 ml), spooned in and levelled off. Brown sugar is shown packed, the way recipes assume it. The highlighted row is the most-searched amount.

CupsWhite / granulatedBrown (packed)PowderedCaster
1 cup200 g220 g120 g200 g
¾ cup150 g165 g90 g150 g
⅔ cup133 g147 g80 g133 g
½ cup100 g110 g60 g100 g
⅓ cup67 g73 g40 g67 g
¼ cup50 g55 g30 g50 g
⅛ cup25 g28 g15 g25 g
2 cups400 g440 g240 g400 g

Tablespoons & teaspoons of sugar in grams

AmountWhite / granulatedBrown (packed)Powdered
1 tablespoon12.5 g13.8 g7.5 g
1 teaspoon4.2 g4.6 g2.5 g
Why your cup might not weigh 200 g. Sugar weight depends on how you fill the cup. The figures above assume sugar spooned in and levelled. Scooping straight from the bag and tapping it down can pack in 10–20% more. Brown sugar is the opposite trap — recipes expect it firmly packed, so a loose cup will leave you short. When it matters, weigh with a kitchen scale.

Calories in a cup of sugar

Sugar is about 3.87 calories per gram, so the calorie count follows the weight. These are rounded values for pure sugar.

AmountWhite / granulatedBrown (packed)Powdered
1 cup774 kcal836 kcal467 kcal
½ cup387 kcal418 kcal233 kcal
⅓ cup259 kcal279 kcal156 kcal
¼ cup194 kcal209 kcal117 kcal
1 tablespoon48 kcal53 kcal29 kcal
1 teaspoon16 kcal18 kcal10 kcal

Grams of sugar to cups

Working the other way — you have a weight and need cups. For granulated sugar at 200 g per cup:

GramsGranulated sugarBrown (packed)
50 g¼ cup≈ 3 tbsp + 2 tsp
100 g½ cup≈ 7 tbsp
150 g¾ cup≈ ⅔ cup
200 g1 cup≈ ⅞ cup
250 g1¼ cups≈ 1⅛ cups
500 g2½ cups≈ 2¼ cups

How to measure a cup of sugar correctly

For granulated, caster and powdered sugar: spoon the sugar loosely into the measuring cup until it overflows, then sweep a flat edge (the back of a knife) across the top to level it. Don't scoop straight from the bag or tap the cup — both pack in extra.

For brown sugar it's the reverse: press it firmly into the cup so it holds the cup's shape when tipped out. That's what "1 cup packed" means, and it's why brown sugar weighs more per cup.

The most reliable method for any sugar is a digital kitchen scale — set the bowl on it, zero it, and pour to the gram. That sidesteps the whole scoop-versus-pack problem and makes your results repeatable.

Frequently asked questions

How many grams is 1 cup of sugar?

One US cup of granulated (white) sugar is about 200 grams, scooped and levelled. Packed brown sugar is about 220 g and powdered sugar about 120 g.

How many grams is half a cup of sugar?

Half a cup of granulated sugar is about 100 grams. Packed brown sugar is about 110 g, and powdered sugar about 60 g.

How many grams is 1/3 cup of sugar?

One third of a cup of granulated sugar is about 67 grams, packed brown sugar about 73 g, and powdered sugar about 40 g.

How many calories are in a cup of sugar?

About 774 calories in a cup of granulated sugar (200 g). Packed brown sugar (220 g) is around 836 calories and powdered sugar (120 g) about 467 calories.

Is a cup of sugar the same weight as a cup of flour?

No. A cup of granulated sugar is about 200 g, but a cup of all-purpose flour is only about 120 g — flour is lighter and less dense. See cup of flour in grams.

Does 1 cup of caster sugar weigh the same as granulated?

Yes, near enough. Caster (superfine) sugar is just finely ground granulated sugar, so a cup is also about 200 g. Powdered/icing sugar is different — it's much lighter at about 120 g per cup.