There are about 4 cups in a pound of powdered sugar. A pound is 453.59 g, and one cup of powdered sugar weighs 113 g when measured spooned and levelled, so 453.59 divided by 113 gives 4 cups. The figure is approximate: cup weights vary with how the cup is filled, how settled the ingredient is, and the brand you buy, so if the recipe matters, weigh the powdered sugar on a kitchen scale instead of counting cups. For everyday cooking, 4 cups per pound is the number to use.

Granulated sugar ground to a fine powder with a little cornstarch. Icings, glazes, dusting and buttercream. That is why the cup count for powdered sugar is different from the cup count for other ingredients: a pound of flour fills nearly four cups, while a pound of honey fills fewer than one and a half, because a cup of honey weighs 336 g and a cup of powdered sugar weighs 113 g. Weight is the same for every ingredient — a pound is always 453.59 g — but volume is not, and the cup count per pound is simply the pound divided by the weight of one cup.

Pounds to cups conversion table

The table below converts pounds of powdered sugar to cups, using 113 g per cup (spooned and levelled). Every figure is approximate, and the gram column is exact — a pound is 453.59 g whatever you are weighing.

Weight Cups (approx.) Grams
0.25 lb 1 cups 113.4 g
0.5 lb 2 cups 226.79 g
0.75 lb 3 cups 340.19 g
1 lb 4 cups 453.59 g
1.5 lb 6 cups 680.38 g
2 lb 8 cups 907.18 g
3 lb 12 cups 1360.77 g
4 lb 16.1 cups 1814.36 g
5 lb 20.1 cups 2267.95 g
10 lb 40.1 cups 4535.9 g

For the amounts most recipes use, the useful rows are the small ones: a quarter pound is 1 cups, half a pound is 2 cups, and three quarters of a pound is 3 cups. If your recipe is written in pounds and your measuring tools are cups, read the cups column; if your recipe is written in cups and you buy by the pound, read it the other way — a recipe that needs 2 cups takes 0.5 lb, and a recipe that needs 3 cups takes 0.7 lb.

Cups to grams and ounces

The table below works in the other direction: cups of powdered sugar to grams and ounces. One cup is 113 g, which is 4 oz, and every other row is a multiple of that.

Cups Grams (approx.) Ounces (approx.)
1/4 cup 28.25 g 1 oz
1/3 cup 37.67 g 1.3 oz
1/2 cup 56.5 g 2 oz
2/3 cup 75.33 g 2.7 oz
3/4 cup 84.75 g 3 oz
1 cup 113 g 4 oz
2 cups 226 g 8 oz
3 cups 339 g 12 oz
4 cups 452 g 15.9 oz

These are the figures to write on a recipe card. A recipe that calls for 1/2 cup needs 56.5 g, a recipe that calls for 2 cups needs 226 g, and a recipe that calls for 4 cups needs 452 g. Weighing removes the cup entirely: put the bowl on the scale, tare it, and pour until the display reads the gram figure. It is faster than measuring cups, it uses one less tool to wash, and it is the same every time, whatever brand of powdered sugar you bought.

Worked examples

Sweet tea for a gathering

A large jug of sweet tea for a summer gathering needs about 1 cup of powdered sugar, which is 113 g — 0.2 lb. A pound of powdered sugar is 4 cups, so one bag sweetens 4.01 jugs. Dissolve the sugar in the hot tea rather than adding it cold, because sugar dissolves slowly in cold liquid and you will end up stirring for minutes and still finding crystals at the bottom. Stir until the liquid runs clear, then chill the jug before serving over ice. If you are making tea for a crowd, weigh the sugar for each jug instead of scooping it — scoops vary, and one jug noticeably sweeter than the last is the kind of detail guests notice.

A cookie jar that never empties

A family cookie jar that gets refilled every weekend uses about 2 cups of powdered sugar per batch, which is 226 g — 0.5 lb. A pound bag holds 4 cups, so one bag is almost exactly one batch, and a 2 lb bag covers two weekends with a little to spare. This is where buying by the pound pays off: work out how many cups your regular recipe needs, divide by 4 cups per pound, and you know how many bags to buy for the month. Keep the sugar in an airtight container, not the paper bag it came in, so it stays dry and free-flowing and the cup weight stays consistent.

Converting a recipe to grams

Converting a recipe from cups to grams starts with the pound. One pound of powdered sugar is 453.59 g, and at 113 g per cup that is 4 cups. So a recipe that calls for 3/4 cup needs 84.75 g, a recipe that calls for 1 1/3 cups needs 150.67 g, and a recipe that calls for 2 cups needs 226 g. Write the gram figures on the recipe card once, and you never have to convert again — and you can scale the recipe by weight in either direction without the rounding errors that come from converting cups to cups. The pound-to-cup figure is the reference that makes the whole conversion work.

How the figure is worked out

The calculation is a single division. A pound is defined as 453.59 g. One cup of powdered sugar weighs 113 g, measured spooned and levelled from a US cup of 236.6 ml, according to King Arthur Baking. Divide the pound by the cup weight — 453.59 divided by 113 — and the answer is 4 cups. There is no other step, and no other number involved, which is why the figure is easy to check: if you know the grams per cup, you know the cups per pound.

The cup weight itself is where the uncertainty lives. One cup of powdered sugar weighs 113 g, measured spooned and levelled from a US cup of 236.6 ml. The figure comes from King Arthur Baking and carries high confidence in our table. A cup is a volume, not a weight, so anything that changes how much of the ingredient fits in that volume changes the weight: how firmly it is packed, how fine the grind is, how much moisture it has absorbed, and whether it was spooned or scooped That is why this page labels every result approximate and why a scale is the only way to be certain.

There is a dispute note on this figure worth knowing. King Arthur lists 113 g unsifted; sifted powdered sugar is about 100 g per cup because sifting adds air. That is why every result on this page is labelled approximate, and why a kitchen scale is the only way to be certain when a recipe has to come out exactly right.

The spoon measures follow from the same cup weight. A cup holds 16 tablespoons, so one tablespoon of powdered sugar weighs 7.1 g, and one teaspoon weighs 2.4 g. The small table below gives the figures you will actually use when a recipe calls for spoonfuls rather than cups.

Measure Grams (approx.)
1 teaspoon 2.4 g
1 tablespoon 7.1 g
2 tablespoons 14.1 g
1/4 cup 28.2 g
1/2 cup 56.5 g
1 cup 113 g

Practical guidance

Granulated sugar ground to a fine powder with a little cornstarch. Icings, glazes, dusting and buttercream. Airtight container, cool and dry, indefinitely.

The most common mistake with powdered sugar is measuring it the wrong way for its form. Sugar is measured spooned and levelled, and the method is the whole story: a loosely filled cup can be far lighter than the 113 g figure, so two bakers measuring the same recipe in cups can end up with different amounts of sugar. For powdered sugar, spoon it in and level it without pressing down — packing it adds weight you cannot see. Store it in an airtight container in a cool, dry place, and if it hardens into a lump, a slice of bread in the jar overnight softens it again.

If you do not have a scale, the cup figures on this page will get you close enough for everyday cooking, but not for precision baking. A basic digital kitchen scale costs little, weighs in grams, and removes the single biggest source of variation in baking. Until you have one, spoon and level dry ingredients, use a liquid jug for liquids, and never scoop from the bag.

Frequently asked questions

How many cups are in a pound of powdered sugar?

About 4 cups. A pound is 453.59 g, and one cup of powdered sugar weighs 113 g, so 453.59 divided by 113 is 4. The figure is approximate, because the cup weight depends on how the cup is filled — spooned and levelled gives 113 g, while a scooped cup can weigh considerably more.

How many grams are in a pound of powdered sugar?

453.59 g. A pound is always 453.59 g whatever the ingredient is; what changes is how many cups that weight fills. For powdered sugar, 453.59 g fills about 4 cups.

Is a pound of powdered sugar the same as 2 cups?

No. A pound of powdered sugar is about 4 cups, which is more than 2 cups. Two cups of powdered sugar weigh 226 g, which is 0.5 lb — a little under a pound. Measuring by weight avoids the error entirely.

Should I pack powdered sugar into the cup?

No — powdered sugar is measured spooned and levelled. Spoon it in and level the top without pressing down; packing it adds weight you cannot see and makes the recipe too sweet. The 113 g per cup figure assumes the spooned and levelled method.

Does the cup count change if the sugar is lumpy or damp?

Yes. Lumps and moisture both change how much sugar fits in a cup, which is why the 4 cups per pound figure is approximate. Break up lumps before measuring, and store the sugar in an airtight container so it stays dry. If the sugar has hardened into a solid block, soften it with a slice of bread in the sealed jar overnight rather than chipping pieces off and measuring those.

How many tablespoons are in a pound of powdered sugar?

About 64.23 tablespoons. A pound is 4 cups, and there are 16 tablespoons in a cup, so 4 times 16 is 64.23. That is 192.68 teaspoons. Spoon measures are useful for small amounts, but for a whole pound, weighing is faster and more accurate.

Related conversions