Cups to Grams: Every Common Amount of Granulated Sugar

1 cup is 198 grams of granulated sugar. The chart below covers every amount people commonly need for this conversion, and each one has its own section further down.

Cups to grams: full chart

Working through the amounts you will actually use

1 cup is 198 grams of granulated sugar. That is 198 multiplied by 1, since 1 cup is 198 grams of granulated sugar. Add the same again and you are at 396 grams; take one away and you are back to 0 gram. Anyone halving the batch needs 1/2 cup, which is 99 grams.

2 cups is 396 grams of granulated sugar. Take the 1 cup figure of 198 grams and multiply by 2 to get there. The step from here to 3 cups is 198 grams. Scaling a recipe from 2 cups starts at this row rather than at the headline figure.

3 cups is 594 grams of granulated sugar. Take the 1 cup figure of 198 grams and multiply by 3 to get there. Per single unit that is 198 grams, the ratio every row on this page is built from.

A recipe asking for 3 cups wants 594 grams in the measure, not an estimate of it. 4 cups is 792 grams of granulated sugar. Half this amount, 2 cups, comes to 396; double it and you are at 1,584. The step from here to 5 cups is 198 grams.

A recipe asking for 4 cups wants 792 grams in the measure, not an estimate of it. 6 cups is 1,188 grams of granulated sugar. That is 198 multiplied by 6, since 1 cup is 198 grams of granulated sugar. Read in reverse, 1,188 grams comes back to 6 cups.

Anyone halving the batch needs 3 cups, which is 594 grams. 8 cups is 1,584 grams of granulated sugar. That is 198 multiplied by 8, since 1 cup is 198 grams of granulated sugar. Read in reverse, 1,584 grams comes back to 8 cups.

Set the measure to 1,584 grams and you have 8 cups without doing the sum twice. 12 cups is 2,376 grams of granulated sugar. 12 of these makes 2,376, counting from the 1 cup figure of 198 grams.

Per single unit that is 198 grams, the ratio every row on this page is built from. Scaling a recipe from 12 cups starts at this row rather than at the headline figure. 16 cups is 3,168 grams of granulated sugar.

Half this amount, 8 cups, comes to 1,584; double it and you are at 6,336. The step from here to 17 cups is 198 grams.

How to work it out without a calculator

To go from cups to grams, multiply by 198. One cup is 198 grams. It behaves the same whether you are on a teaspoon or a gallon. Going back the other way, one gram returns 0.005 cup. These are defined volumes, so scooping technique does not enter into it.

One example, all the way

Say a recipe you are halving asks for 6 cups, and your equipment is only marked in grams. Take the one-cup figure of 198 grams and apply it 6 times: 1,188 grams. That is the number you want on the jug.

The weight of sugar per cup is what makes this number what it is.

Why this one depends on the ingredient

The cup measures how much room something takes up, not how heavy it is. Fill one with granulated sugar and you have 198 g; fill it with water and you have 237 g — 16 per cent lighter. Every row above comes off that one number.

Put the other way round, a pound of granulated sugar fills 2.29 cups, and 12.4 g of it comes to a level tablespoon. Neither number transfers to a different ingredient.

Weight per cup for common ingredients

Across those rows rolled oats is the lightest at 89 g to the cup and butter the heaviest at 227 g, a spread of 2.55 times. That spread is the whole reason a cup figure means nothing until the ingredient is named.

Every figure above is one level cup, spooned in and swept flat. Scooping straight from the bag packs the cup and can add a fifth again to the weight, which is why bakers who want the same result twice weigh instead of measuring.

What the answer depends on

The ingredient decides the answer here, not the recipe. Swap flour for sugar and the same cup weighs sixty per cent more. Any figure quoted without naming the ingredient is incomplete.

Anything that changes how the ingredient sits in the measure changes the answer with it.

Going the other way: grams to cups

Reading the table backwards works because the ratio is fixed: 198 grams per cup one way, 0.005 cup per gram the other.

Anyone working from a figure already in grams needs this direction, and 0.005 cup is where it starts.

How to measure this accurately

A cup that has been shaken level is not the same as one swept level with a knife. Shaking settles the contents; sweeping does not.

The packing problem is why two cooks measuring “one cup” of the same ingredient can be twenty per cent apart. A scale sidesteps it.

Set the bowl on a scale, press tare, and add granulated sugar until the display reads the figure you want. That removes the guesswork entirely.

Where a recipe lists both a volume and a weight, they were not measured on the same day by the same person. The weight is the one that survives being copied.

How much rounding this will take

The test is whether the dish can still be corrected after tasting. If it can, round; if the decision is locked the moment it goes in the oven, do not.

Where a recipe gives an odd figure it usually got there by conversion rather than by choice. Rounding it back to the round number it started as is often closer to the intent than the decimal.

Anything that has to react — yeast, baking soda, gelatin — works as a proportion of everything around it. Round those and you have changed the proportion, not merely the amount.

If the recipe is going to be scaled, keep the decimal until after the scaling. Rounding first and multiplying afterwards multiplies the error along with everything else.

Where this usually goes wrong

Halving a weight but not the volume it was converted from. Once a recipe mixes the two kinds of measure, scaling has to be done on one of them and converted afterwards.

Borrowing a figure quoted for a different ingredient. Cup weights are published everywhere and rarely labelled clearly, and one lifted from the wrong row can be half again out.

Carrying a figure across ingredients. A weight per cup is a property of the thing in the cup, so a number learnt for one ingredient is simply wrong for the next.

Where this conversion turns up

This comes up whenever a recipe crosses a border. 1 cup is 198 grams, and once that is fixed the rest of the recipe scales from it.

Older cookbooks and handwritten family recipes rarely state which system they meant. 1 cup is 198 grams is the assumption that makes most of them work.

Translating a recipe usually leaves the units alone, so 1 cup is 198 grams is the part still left to work out.

Packaging, recipes and kitchen equipment rarely agree on units. 1 cup is 198 grams — the figure to keep in mind when they disagree.

Smaller amounts, measured out

Below roughly 4.13 g a spoon beats a scale, because that is the point where a domestic scale starts guessing at the last digit.

Scaling it up and down

Half of 1 cup is 99 grams of granulated sugar. Double it and you have 396 grams; triple it and you are at 594 grams. A batch cut to a quarter needs 49.5 grams.

Nothing about the ratio changes with the size of the batch, which is what makes scaling safe here.

One and a half batches come to 297 grams, six times to 1,188 grams and a dozen to 2,376 grams. Cut to a third it is 66 grams.

What the rounding actually costs

The exact figure for 1 cup is 198. Written the way most cooks would write it, 200 grams, it is out by 2 — about 1.0 per cent. On one batch that is invisible. Scaled four times the gap is 8, which is where it starts to show in anything that has to set.

Granulated Sugar Cup to Gram Basics

Start by applying the chart’s 198 grams per cup value to granulated sugar only. Do not use the same cup-to-gram figure for flour, brown sugar, icing sugar, or liquids, because each ingredient packs and weighs differently.

For baking, weigh the sugar if a scale is available. Put the bowl on the scale, tare it, then add sugar until the display matches the gram amount from the chart. This removes the judgement involved in filling a measuring cup.

If you must use cups, fill the cup consistently. Scoop or spoon the sugar in, then level it with a straight edge. Do not press it down. Granulated sugar settles, but it is not measured packed like brown sugar.

The main problem with cup measures is volume, not arithmetic. A heaped cup, a shaken cup, and a level cup can all look close but give different results. In cakes and biscuits, that changes sweetness, spread, browning, and texture.

Use the granulated sugar row whenever the recipe says white sugar, table sugar, or regular sugar. Do not switch to confectioners sugar or packed brown sugar without using their own weights, because their crystal size and density are different.

For small amounts, be more careful rather than less. A slight overfill in a small cup measure becomes noticeable in frostings, custards, and sauces. Level the measure cleanly, then transfer it without tapping or compacting it.

For large batches, weighing is faster and safer. Repeated cupfuls add repeated measuring errors. If a recipe is doubled or scaled for a tray bake, weigh the total sugar instead of counting cup after cup.

Check which cup standard the recipe assumes before converting. A US customary cup, metric cup, and UK legal cup are not the same volume. If the recipe gives grams, follow grams. If it gives cups, use the matching chart.

Do not convert sugar by comparing it with water. Water fills a cup by volume and has its own weight. Granulated sugar has air spaces between crystals, so the same cup volume does not weigh like water.

Use grams for the final decision and cups only as a practical measuring tool. The chart gives the target; your job is to measure without packing, heaping, or switching ingredients. That keeps the recipe closer to how it was tested.

Why Sugar Cup Weights Vary

Sugar cup weights vary because a cup measures volume, not mass. The cup shows how much space the sugar fills. The scale shows how much sugar is actually there. Those are not the same thing.

Granulated sugar is more consistent than flour, but it still shifts. Crystal size, settling, humidity, and how the cup is filled all change the amount that fits into the same measuring cup.

A fresh bag can pour loosely. A bag that has sat in the cupboard may have settled. Scooping from the settled bag can pack more sugar into the cup before the surface even looks full.

The measuring method matters. Dipping the cup into the bag pushes sugar into the measure. Spoon-filling drops it in more lightly. Tapping the cup on the counter settles the crystals and increases the weight.

Levelling also matters. A heaped cup adds extra sugar. A level cup removes that extra. A small mound above the rim can change sweetness, spread, browning, and texture in baking.

Humidity can make sugar clump or flow differently. Damp sugar may not settle evenly, and small clumps leave air gaps. Dry, free-flowing sugar packs more predictably, especially if stirred before measuring.

Different sugars cannot share the same cup weight. Brown sugar, packed, is compressed into the cup. Confectioners sugar is powdery and traps more air. Granulated sugar sits between those behaviours.

This is why a cup of sugar is not interchangeable with a cup of water, flour, or butter by weight. The cup is the same size, but each ingredient has a different density.

The cup itself can also cause variation. A US customary cup is not the same size as a metric cup. If a recipe uses one system and your measure uses another, the sugar amount changes before technique is involved.

For everyday cooking, the difference may not matter. For cakes, biscuits, meringues, and sweets, it often does. Sugar controls more than sweetness. It affects moisture, tenderness, spread, colour, and how mixtures set.

Use the chart when a recipe gives cups and you want a scale weight. Weigh the sugar into the bowl, then stop. Do not scoop, tap, and adjust after weighing, because that brings the cup problem back.

If you must use cups, use one method throughout the recipe. Fill the cup consistently, level it cleanly, and avoid compressing the sugar unless the recipe specifically says packed.

For repeatable results, write down the method that worked. If the biscuits spread correctly or the cake texture was right, use the same sugar, same cup, and same filling method next time.

Measuring Granulated Sugar Accurately

Use a digital kitchen scale for the most consistent result. Place the mixing bowl on the scale, select the gram setting, and tare the display before adding sugar.

Add sugar gradually until the display matches the chart, then return the bowl to the recipe.

Keep the bowl and scale on a firm, level surface. A soft mat, uneven worktop, or bowl touching another object can interfere with the reading. Check that the scale is stable before weighing, and keep the display visible while pouring.

If you measure by volume, use a dry measuring cup made for solid ingredients. Do not use a liquid jug. The shapes and markings differ, and reading a liquid measure from above can leave the sugar amount inaccurate.

Stir the sugar in its storage container before measuring. This loosens compacted areas and distributes the crystals. Do not shake the cup to settle the sugar, because shaking encourages the crystals to pack more tightly and changes the amount held.

Spoon the sugar into the cup rather than plunging the cup into the container. Fill it gently until the sugar rises slightly above the rim. This method avoids compressing the contents and gives a more repeatable measure.

Level the top with the straight edge of a knife or a flat spatula. Sweep across the rim in a single motion, allowing the excess to fall back into the container. Do not press the blade into the sugar or tap the cup against the worktop.

Read the recipe wording carefully. Granulated sugar is measured loose, not packed. Pressing it down creates spaces between some crystals while compressing others, so the amount varies with the pressure and the tool used.

Keep the measuring cup dry. Moisture makes sugar cling to the sides, form lumps, and remain on the levelling tool. If the sugar has damp patches, break them apart with a clean, dry spoon before measuring.

For baking, weigh the sugar after preparing the bowl and before mixing other ingredients. If sugar is added directly to a bowl that already contains ingredients, the scale cannot identify the sugar alone.

Weigh it separately or use a second container.

For a partial quantity, rely on the chart or the scale instead of estimating by eye. A level cup and a heaped cup are not interchangeable.

Accurate levelling also makes repeated batches easier to compare and helps prevent sweetness, spread, and texture from changing.

Clean sugar from the scale after weighing, especially around buttons and the weighing platform. Store the sugar in a dry, sealed container so it remains easy to spoon, level, and weigh consistently for the next recipe.

Packed Versus Scooped Sugar

Granulated sugar should be filled into the cup, not packed down. Packing is for ingredients that hold air pockets and clump, such as brown sugar.

White granulated sugar flows more freely, so pressing it changes the amount without improving the measurement.

If you scoop straight from the bag, the cup can become compacted as it pushes through the sugar. That gives a heavier cup than one filled gently. The top may still look level, but the sugar underneath is denser.

Use a spoon to move sugar into the measuring cup, then level it with a straight edge. Do not tap the cup on the bench. Do not shake it to settle the grains. Those small actions pack more sugar into the same space.

A heaped scoop causes a different problem. The mound above the rim is easy to miss, especially with a soft measuring cup or a cup held at an angle. Level across the rim, not across the highest part of the mound.

Pressed sugar can make bakes sweeter and drier than planned. Cakes may set firmer. Biscuits may spread differently. Custards and sauces can taste unbalanced. The recipe has not changed, but the ingredient amount has.

Granulated sugar also behaves differently from confectioners sugar. Powdered sugar traps more air and compresses easily. Granulated sugar is more consistent, but it still should not be forced into the cup.

Do not copy the brown sugar method. Packed brown sugar is pressed because the recipe expects that dense measure. Granulated sugar recipes usually expect a filled and level cup, not a firmly compressed one.

If a recipe says “packed sugar”, read the ingredient name carefully. It usually means brown sugar, not granulated sugar. If the recipe truly means packed granulated sugar, weighing is the safer choice because the cup method becomes unclear.

For repeated batches, use the same filling method each time. A single cake may forgive a small difference. Several trays of biscuits will show the difference more clearly, because each batch carries the same measuring habit forward.

If you are converting a cup measure to grams, packing defeats the purpose of the chart. The chart assumes a normal measured cup, not a compressed one. Fill gently, level cleanly, then weigh if precision matters.

The practical rule is simple: spoon, level, and stop. Do not scoop hard, press, tap, or shake. That keeps the cup measure close to the weight your conversion is meant to represent.

Using Grams for Better Baking

Grams make sugar predictable. Put the bowl on the scale, tare it, then add granulated sugar until the display matches the chart.

This removes the guesswork from scooping, levelling, and judging whether the cup was filled the same way as the recipe writer’s.

This matters most in baking because sugar does more than sweeten. It affects spread, browning, moisture, texture, and how firmly a cake or biscuit sets. Too much can make biscuits spread and cakes sink. Too little can make bakes dry, pale, or tight.

A scale also helps when you change batch size. Doubling or reducing a recipe by cups can magnify small measuring differences. Working in grams keeps each batch closer to the original, especially for recipes you make often or sell.

Use the chart value for granulated sugar, not a general cup-to-gram figure. Ingredients do not share the same weight by volume.

A cup of water, flour, butter, and sugar each behaves differently, so swapping in a universal conversion can throw the recipe off.

For best results, weigh sugar before adding it to wet ingredients. If you overshoot, spoon some out while it is still dry. Once sugar touches eggs, butter, oil, or syrup, correcting the amount becomes messy and less accurate.

Tare between ingredients if you are weighing into the same bowl. Add sugar, tare again, then add the next ingredient. This keeps the display simple and avoids mental subtraction while your hands are sticky or the mixer is already running.

Check the recipe wording before converting. Granulated sugar should be treated differently from packed brown sugar or confectioners sugar. Packed sugar can hold more in the cup, while powdery sugar settles differently.

Use the ingredient named in the recipe, not the closest-looking substitute.

If a recipe gives both cups and grams, use the grams. The author has already chosen the intended weight.

If the cups and grams disagree with a standard chart, follow the recipe’s grams for that recipe, because testing may have been done with that amount.

Keep your sugar container easy to scoop from, but let the scale do the measuring. Pouring straight from a bag can overshoot quickly. A spoon or small scoop gives better control as you approach the target weight.

Record the gram amount on printed recipes you use often. Next time, you can skip the conversion step and weigh directly.

This saves time and keeps repeat bakes consistent, especially for sponge cakes, shortbread, meringues, and biscuits where sugar balance shows clearly.

Other ways this gets asked

These are the other phrasings that lead here, and the chart handles them all:

For every kitchen figure in one place, see the full conversion chart.

Sources

• NIST Handbook 44, Appendix C: General Tables of Units of Measurement
• King Arthur Baking, Ingredient Weight Chart

Related conversions

• Cups to Grams Chart of Butter
• How Many Grams Are in a Cup of All-purpose Flour?
• Cups to Grams Chart of Water
• Cups to Fluid Ounces: Every Common Amount
• Convert Cups to Ounces of All-purpose Flour