Blucalculator Open Tool

Sugar Unit Converter

Convert granulated, brown, powdered, and raw sugar between cups, tablespoons, grams, and ounces. Includes calorie estimate.

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How to use this calculator

Four inputs. The result shows grams, cups, tablespoons, and calories all at once.

Sugar type is the first dropdown and the most important one. Options include granulated white sugar, brown sugar (light and dark), powdered/icing sugar, raw/turbinado sugar, caster sugar, and sometimes coconut sugar. Select your type before entering any numbers. The density used in the calculation changes depending on which type you pick.

Amount is the quantity you’re starting with. Type it in. Decimals work fine: 0.5 cups, 2.5 tablespoons, 175 grams.

From unit is your source unit: cup, tablespoon (tbsp), teaspoon (tsp), gram (g), or ounce (oz).

To unit is your target. Same options.

Click Calculate and the blue results panel shows the converted value plus 4 simultaneous outputs: Grams, Cups, Tablespoons, and Calories. The calorie figure uses standard values per gram for each sugar type (approximately 3.87 kcal/g for most sugars) applied to the gram equivalent.

The Visualization section below the results renders a proportional cup graphic showing how much of a cup your amount represents.

Example: 1 cup of granulated white sugar

Sugar type: Granulated white / Amount: 1 / From unit: cup

Results:

  • Grams: 199.9g (effectively 200g)
  • Cups: 1
  • Tablespoons: 16
  • Calories: 774 kcal

The same 1 cup of powdered sugar gives 120g and 465 kcal. Same cup, 40% less sugar by weight.

Always select your sugar type before converting. If you convert grams without specifying sugar type, the calculator defaults to granulated white. A recipe calling for 120g of powdered sugar is not the same amount as 120g of granulated sugar in terms of volume, texture, or sweetness intensity in the finished dish.


Why sugar type changes the conversion

Sugar density varies because the crystals pack differently. Granulated sugar has medium-sized crystals that settle into a moderately dense arrangement. Powdered sugar is ground to a fine dust with added cornstarch; it’s airy and compressible. Brown sugar is granulated sugar with molasses added, making the crystals sticky and prone to clumping. Packed firmly into a cup, it’s heavier than granulated. Raw sugar has large, coarse crystals with gaps between them.

Volume measurements (cups, tablespoons) capture a fixed space. Weight measurements (grams, ounces) capture actual mass regardless of how the crystals are arranged. That’s why recipes from professional bakers almost always specify sugar by weight: 200g is 200g no matter how the crystals are sized or how you happened to scoop the cup.

"1 cup" of sugar is only a precise measurement if you specify the type and the scooping method. A loosely spooned cup of powdered sugar can weigh 30-40% less than a firmly packed cup of the same type. Gram measurements eliminate all of that ambiguity.

Density reference by sugar type

Sugar typeGrams per cupGrams per tbspGrams per tspCalories per cup
Granulated white20012.54.2774
Caster (superfine)20012.54.2774
Brown sugar (packed)22013.84.6836
Brown sugar (unpacked)16010.03.3616
Powdered / icing sugar1207.52.5465
Raw / turbinado18011.33.8697
Coconut sugar16010.03.3592
Demerara20012.54.2774

Brown sugar is almost always specified as “packed” in US recipes. Packing means pressing the sugar firmly into the measuring cup until it holds the cup’s shape when turned out. Unpacked brown sugar in the same cup weighs about 30% less. If your recipe says “brown sugar” without specifying, assume packed.


The formulas

All conversions go through grams using the density for the selected sugar type.

Grams = Volume (cups) × Grams per cup (sugar-type-specific)
Cups = Grams / Grams per cup (sugar-type-specific)
Tablespoons = Cups × 16
Teaspoons = Cups × 48
Calories = Grams × Calories per gram

Calorie values per gram by sugar type:

Granulated / caster / demerara / raw: ~3.87 kcal/g
Brown sugar: ~3.80 kcal/g
Powdered sugar: ~3.87 kcal/g
Coconut sugar: ~3.70 kcal/g

The calorie output is the gram equivalent multiplied by the appropriate factor. It’s an estimate: actual calorie content varies slightly by brand and moisture content.

1 cup = 16 tablespoons = 48 teaspoons. These volume relationships are fixed regardless of sugar type. The density (grams per cup) is what changes. So the tablespoon and teaspoon outputs in the calculator adjust automatically when you change sugar type.


Granulated white sugar: full conversion table

The most common sugar in baking. This is the baseline most recipes assume when they just say “sugar.”

CupsTablespoonsTeaspoonsGramsOuncesCalories
1/826250.8897
1/4412501.76194
1/35.3316672.35259
1/28241003.53387
2/310.67321334.71515
3/412361505.29581
116482007.05774
1.5247230010.581,161
2329640014.111,548
2.54012050017.641,935
34814460021.162,322

Brown sugar: packed vs unpacked

Brown sugar recipes almost always mean packed unless otherwise stated. The difference is significant enough to affect recipes.

Cups (packed)GramsCups (unpacked)GramsDifference
1/4551/44015g
1/3731/35320g
1/21101/28030g
2/31472/310740g
3/41653/412045g
1220116060g
1.53301.524090g
24402320120g

Powdered / icing sugar conversion table

Powdered sugar is significantly lighter than granulated. A recipe substitution without accounting for density gives far too little sugar by weight.

CupsTablespoonsGramsOuncesCalories
1/44301.06116
1/35.33401.41155
1/28602.12232
2/310.67802.82310
3/412903.17348
1161204.23465
1.5241806.35697
2322408.47929
34836012.701,394

Grams to cups: quick lookup for international recipes

European and professional recipes specify sugar in grams. This table converts to US cup measurements for the 3 most common sugar types.

GramsGranulated (cups)Brown packed (cups)Powdered (cups)
250.125 (1/8)0.1140.208
500.25 (1/4)0.2270.417
750.3750.3410.625
1000.5 (1/2)0.4550.833
1200.60.5451.0
1500.75 (3/4)0.6821.25
1750.8750.7951.458
2001.00.9091.667
2201.11.01.833
2501.251.1362.083
3001.51.3642.5
4002.01.8183.333
5002.52.2734.167

Common recipe amounts decoded

Recipe saysGranulated (g)Brown packed (g)Powdered (g)Tbsp
1 tsp4.24.62.50.33
1 tbsp12.513.87.51
2 tbsp2527.6152
1/4 cup5055304
1/3 cup6773405.33
1/2 cup100110608
3/4 cup1501659012
1 cup20022012016
1.5 cups30033018024
2 cups40044024032

Real-world examples

Scaling a cake recipe

A chocolate cake recipe calls for 1.5 cups of granulated sugar. You want to make half the batch.

Half batch sugar calculation

Original: 1.5 cups = 300g = 24 tablespoons

Half: 0.75 cups = 150g = 12 tablespoons

Both are easy to measure. 150g on a scale is more precise than trying to measure exactly 3/4 cup with a measuring cup, especially for baking where sugar affects texture and moisture.

Converting a UK recipe

A British Victoria sponge recipe calls for 175g of caster sugar. You’re in the US with granulated sugar and cup measures.

175g caster sugar in US terms

Caster sugar density: same as granulated, 200g per cup

175g / 200g = 0.875 cups = 7/8 cup

In tablespoons: 0.875 × 16 = 14 tablespoons

Practical approach: measure 3/4 cup (12 tbsp = 150g) then add 2 more tablespoons (25g) = 175g total. Or just weigh it.

Note: caster sugar is finer than US granulated but has the same density and the same baking behaviour in most recipes. US granulated sugar is an acceptable substitute.

Reducing sugar in a recipe

A cookie recipe calls for 1 cup of granulated sugar. You want to reduce by 25% to cut calories.

Reducing sugar by 25%

Original: 1 cup = 200g = 774 kcal

Reduced (75%): 0.75 cup = 150g = 581 kcal

Calorie saving: 193 kcal per batch

Practical note: reducing sugar by up to 25% in most cookie and cake recipes doesn’t significantly affect texture. Beyond 25%, cookies may spread less, cakes may be denser, and browning may reduce (sugar promotes the Maillard reaction).

Making a simple syrup

A bar recipe calls for 2:1 simple syrup: 2 cups sugar to 1 cup water. You want to make a smaller batch using grams.

Simple syrup by weight

2 cups granulated sugar = 400g

Scale down to 150g sugar + 75g water (same 2:1 ratio by weight)

The ratio holds by weight or volume since water is 1g/ml. 75g water = 75ml = about 5 tablespoons.

Result: roughly 225ml of 2:1 simple syrup.


Common mistakes people make

Scooping instead of spooning into the cup. Scooping a measuring cup directly into the sugar bag compresses the sugar and adds 10-30% more by weight compared to spooning sugar gently into the cup and levelling off. Professional baking recipes are calibrated to the spoon-and-level method. Using a scoop can add 30-60g extra per cup of granulated sugar, enough to meaningfully affect cookies and cakes.

Substituting powdered sugar for granulated by volume. If a recipe calls for 1 cup of granulated sugar (200g) and you substitute 1 cup of powdered sugar (120g), you’re using 40% less sugar by weight. Powdered sugar also contains cornstarch (about 3-5% by weight), which affects texture. For most baked goods, these are not interchangeable by volume.

Assuming “sugar” always means granulated. In the US, “sugar” in a recipe typically means granulated white sugar. In UK recipes, “caster sugar” is more common as the default. French recipes often specify “sucre en poudre” (fine sugar similar to caster). When a recipe’s origin isn’t clear, granulated white is the safe assumption for US recipes; caster for British.

Ignoring the calorie output for portion sizing. 1 cup of sugar is 774 calories. A batch of cookies using 2 cups of sugar has 1,548 calories from sugar alone, before any other ingredients. The calorie output in the calculator is useful not for guilt but for understanding where the calorie density in baked goods actually comes from. Sugar typically contributes 20-40% of total calories in cookies and cakes.

Not accounting for moisture in brown sugar conversions. Brown sugar has a slightly higher moisture content than white due to the molasses. In recipes where moisture balance is critical (bread, macarons, meringues), substituting brown sugar for white doesn’t just change sweetness: it adds moisture. The conversion tables here are by weight; the moisture effect is separate and recipe-dependent.

Powdered sugar contains approximately 3% cornstarch by weight to prevent clumping. This cornstarch is inert in most baking, but in recipes relying on pure sugar (candy making, some frostings, macarons), powdered sugar is not a direct substitute for granulated even after correcting for density. Make sure the recipe specifically calls for powdered sugar before using it.


Sugar types and when to use each

Sugar typeCrystal sizeMolassesBest used for
Granulated whiteMediumNoneAll-purpose baking, beverages, cooking
Caster / superfineFineNoneMeringues, fine-textured cakes, cocktails
Powdered / icingDustNone (+ cornstarch)Frosting, dusting, fudge, glazes
Light brownMedium~3.5%Cookies, marinades, some cakes
Dark brownMedium~6.5%Gingerbread, BBQ rubs, molasses-forward baking
Raw / turbinadoCoarseSmall amountTopping, coffee, rustic cookies
DemeraraCoarseTraceCoffee, crumbles, caramelised toppings
Coconut sugarMedium-fineNone (sap-based)Lower-GI substitute, caramel notes

Light and dark brown sugar are interchangeable in most recipes: dark just has a stronger molasses flavour and slightly more moisture. If a recipe calls for light and you only have dark, use it, but expect a more pronounced caramel flavour. The conversion weights are nearly identical.


The bottom line

Sugar conversion is more specific than most cooking conversions because the type matters as much as the amount. A cup of powdered sugar and a cup of granulated sugar are not equivalent; the weight difference is 40% and the behaviour in a recipe is completely different.

Select the sugar type first, then enter your amount. The calorie output is a useful bonus: it makes the energy contribution of sugar in a recipe visible without separate calculation.

When in doubt, weigh it. A kitchen scale eliminates every density question permanently, for sugar and for everything else.

Frequently Asked Questions

How many grams is 1 cup of granulated sugar?

1 cup of granulated white sugar weighs approximately 200 grams. This is one of the most common conversions in baking, so it is worth memorizing.

How many grams is 1 cup of brown sugar?

1 cup of packed brown sugar weighs approximately 220 grams. "Packed" means pressing the sugar firmly into the measuring cup until it holds its shape when unmolded.

How many grams is 1 cup of powdered sugar?

1 cup of powdered (icing) sugar weighs approximately 120–130 grams. Because it is very light and tends to clump, sifting before measuring gives more consistent volume results.

Can I substitute brown sugar for white sugar?

Yes, usually 1:1 by weight. Brown sugar adds moisture and a slight molasses flavor. In baked goods this produces a chewier texture. For every cup of white sugar, use 1 cup of packed brown sugar.

How many calories in 1 tablespoon of sugar?

1 tablespoon of granulated sugar (about 12.5 g) contains approximately 48 calories. All sugars provide about 4 calories per gram regardless of type.

How many teaspoons is 1 gram of sugar?

1 gram of granulated sugar equals approximately 0.24 teaspoons. Conversely, 1 teaspoon of sugar weighs about 4.2 grams. The FDA uses 4 g per teaspoon on nutrition labels as a round number.

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