Find out how many grams are in a cup of flour, sugar, butter and 50+ other ingredients, or turn grams back into cups and tablespoons. Switch between US, UK and Australian measuring cups and spoons.
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Unit
Recipe measuring system
All-purpose flour: US measures
All-purpose flour · 1 cup · US measures
4.2 oz · 237 ml
Same amount in other units (US measures)
All-purpose flour by cup and spoon size
Grams per US cup, heaviest first
ADVICE
Weights are for a US cup from King Arthur Baking's ingredient chart and are scaled by volume for other cup sizes. How you scoop, pack or sift changes what a cup really holds, so weigh on a scale when you can.
Grams per cup, tablespoon and teaspoon for 50+ ingredients
A cup measures volume. A gram measures weight. How many grams fit in a cup depends on the ingredient: a US cup of all-purpose flour is 120 g, a cup of granulated sugar is 198 g and a cup of honey is 336 g. This tool looks up the weight for each ingredient so you can follow a recipe with a kitchen scale, or measure with cups when a recipe only lists grams.
The Cups → grams tab turns cups, tablespoons or teaspoons into grams, with ounces and milliliters alongside. The Grams → cups tab takes grams, ounces or pounds and gives the answer as a fraction of a cup, plus a breakdown such as "1 cup + 2 tbsp + 1 tsp" that you can measure with ordinary cups and spoons.
Cups are not the same size everywhere. A US cup is 236.6 ml, a metric cup used in the UK, Canada, New Zealand and Australia is 250 ml, and older British recipes may use a 284 ml imperial cup. Australian tablespoons are also bigger at 20 ml. The US ⇄ UK ⇄ AU cups tab converts an amount from one system to another, and a table under the result shows what your ingredient weighs in each cup and spoon size.
You can type amounts as 1.5, 1/2, 1 1/2 or ½. Search works with UK and Australian names too, so "plain flour", "icing sugar", "caster sugar" and "bicarbonate of soda" find the right entry. Weights come from King Arthur Baking's published ingredient weight chart.
When a recipe lists cups and your scale reads grams
Baking from a US recipe with a scale
Type the cups from the recipe and get grams. One cup of all-purpose flour is 120 g, so 2 1/2 cups is 300 g.
Using a UK or Australian recipe with US cups
Set the system the recipe was written for, convert to US, and see how many US cups and tablespoons you need. A 250 ml cup is about 1.06 US cups.
Turning grams into measuring cups
When a recipe gives only grams and you have no scale, enter the weight and read the answer in cups, tablespoons and teaspoons.
Cutting or adding butter by the stick
Butter is 227 g per cup, and a US stick is 1/2 cup, 8 tablespoons or 113 g. Use any of those to match a recipe.
Swapping one type of salt for another
A tablespoon of table salt weighs 18 g, Morton kosher salt 16 g and Diamond Crystal 8 g. Pick the one you own to get the right amount.
Scaling a recipe without awkward fractions
Convert to grams, double or halve the numbers, then convert back if you still want cups. Grams avoid measures like 2/3 of 3/4 cup.
Four steps to convert a recipe measurement
- Choose a tab: Cups → grams, Grams → cups, or US ⇄ UK ⇄ AU cups.
- Pick an ingredient from the list or search for it by name. US and UK/AU names both work.
- Select the measuring system the recipe uses (US, UK / CA / NZ, Australia or old UK imperial). For the US ⇄ UK ⇄ AU tab, also choose the system to convert to.
- Enter the amount, such as 1 1/2 or ¾, and read the result. Use Copy result to paste it into your notes.
Note: Calculations run in your browser. The tool remembers your last mode, ingredient and unit choices in local storage, but not the amounts you type.
What the numbers assume and where they can drift
- Weights are for a US customary cup (236.6 ml) and come from King Arthur Baking's ingredient weight chart. Other cup and spoon sizes are scaled by volume.
- Water is calculated at 1 g per ml, so a US cup is about 237 g. Milk, cream, buttermilk, yogurt, sour cream and cream cheese follow the chart's 227 g (8 oz) per cup.
- Brown sugar is packed into the cup and powdered sugar is unsifted. Scooping, packing and sifting change what a cup holds, so a scale gives more consistent results.
- The chart rounds to whole grams. Tiny amounts such as a teaspoon of baking powder, baking soda or yeast can be off by about a gram.
- Cornmeal weight varies by product. The chart lists 138 g to 156 g per cup, and this tool uses 156 g.
- Salt varies a lot by type. Table salt, Morton kosher salt and Diamond Crystal kosher salt each have their own entry.
- US nutrition labels use a 240 ml cup. This tool uses the 236.6 ml cup that recipes and measuring cups use.
Grams in one US, metric and imperial cup
Common ingredients in one cup of each size. Metric and imperial weights are scaled by volume from the US cup values.
| Ingredient | US cup (236.6 ml) | Metric cup (250 ml) | Old imperial cup (284 ml) |
|---|---|---|---|
| All-purpose flour | 120 g | 127 g | 144 g |
| Whole wheat flour | 113 g | 119 g | 136 g |
| Granulated sugar | 198 g | 209 g | 238 g |
| Brown sugar (packed) | 213 g | 225 g | 256 g |
| Powdered sugar | 113 g | 119 g | 136 g |
| Butter | 227 g | 240 g | 273 g |
| Honey | 336 g | 355 g | 404 g |
| Vegetable oil | 198 g | 209 g | 238 g |
| Unsweetened cocoa powder | 84 g | 89 g | 101 g |
| Rolled oats | 113 g | 119 g | 136 g |
| Chocolate chips | 170 g | 180 g | 204 g |
| Water | 237 g | 250 g | 284 g |
Tablespoons differ too. A tablespoon is 14.8 ml in the US, 15 ml in the UK and most metric countries, and 20 ml in Australia. For all-purpose flour that is about 7.5 g, 7.6 g and 10.1 g.
Pick any other ingredient in the tool to see its weight for each cup, tablespoon and teaspoon size.
Why cups and grams don't line up from one ingredient to the next
A short guide to cup sizes, spoon sizes and ingredient weights, so you know what the numbers mean.
Volume is not weight
A cup is always the same amount of space, but the ingredient inside it is not always the same weight. In this tool a US cup holds 84 g of cocoa powder, 120 g of all-purpose flour, 198 g of granulated sugar, 227 g of butter and 336 g of honey. That is a spread of 4 to 1 between cocoa and honey. If you substitute by cups, the result is the same volume. If you substitute by grams, the result is the same weight. Recipes that list grams remove the guesswork.
US, UK, Australian and imperial cup and spoon sizes
US customary cup: 236.588 ml. Metric cup (UK, Canada, New Zealand, Australia): 250 ml. Old UK imperial cup: 284.131 ml. US legal cup (nutrition labels): 240 ml.
Tablespoons are 14.787 ml in the US, 15 ml in the UK and most metric countries, and 20 ml in Australia. Teaspoons are 4.929 ml in the US and 5 ml in the UK and Australia. The old imperial tablespoon is 17.758 ml and the teaspoon 5.919 ml.
Converting a UK or Australian recipe to US cups
Multiply the cups by 1.057 to get US cups, or divide US cups by 1.057 to get 250 ml cups. In kitchen terms, a 250 ml cup is about 1 US cup plus 1 tablespoon. An Australian tablespoon is about 1 US tablespoon plus 1 teaspoon. Across 4 cups of flour, the cup difference alone adds up to about 54 ml, or roughly 3 1/2 US tablespoons.
Butter: sticks, tablespoons, cups and grams
1 US stick = 1/2 cup = 8 tablespoons = 113 g. A full cup is 2 sticks, or 227 g. A single tablespoon is about 14 g. The tool shows these numbers when you select butter.
Salt, baking powder, baking soda and yeast
Salt is the biggest trap. A tablespoon of table salt is 18 g, Morton kosher salt is 16 g and Diamond Crystal kosher salt is 8 g. For leaveners, the source chart lists baking powder at 4 g per teaspoon, baking soda at 3 g per 1/2 teaspoon and instant yeast at 9 g per tablespoon. These small amounts are rounded to whole grams.
Grams to cups: the formula
Divide the weight by the grams per cup. 300 g of all-purpose flour ÷ 120 = 2.5 cups. 300 g of granulated sugar ÷ 198 = about 1 1/2 cups. For a cup size other than the US cup, multiply the grams per cup by the ratio of the cup sizes first, for example 120 × 250 ÷ 236.6 = 127 g for a 250 ml cup of flour.
Cup-measuring mistakes and how to avoid them
Measuring a 250 ml cup recipe with a US cup
A US cup holds about 13 ml less than a 250 ml cup. In a recipe with 4 cups of flour, that is about 54 ml short.
💡 See the solution▼
Using a 15 ml tablespoon in an Australian recipe
Australian tablespoons are 20 ml. A 15 ml spoon is 5 ml short each time, which is a full teaspoon.
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Treating a cup of honey like a cup of water
Syrups are much heavier than water. A US cup of honey is 336 g, while a cup of water is about 237 g.
💡 See the solution▼
Swapping kosher salt for table salt by the spoon
A tablespoon of Diamond Crystal kosher salt weighs 8 g, and table salt weighs 18 g. A spoon of table salt holds more than twice the weight.
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Not packing the brown sugar
The weight in this tool is for brown sugar packed into the cup. A loosely filled cup holds less.
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Mixing up cornflour and corn flour
In the UK and Australia, cornflour means cornstarch. In the US, corn flour usually means finely ground corn.
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Cup, tablespoon and gram conversion questions
Q.How many grams are in 1 cup of all-purpose flour?
A. A US cup of all-purpose flour is 120 g (4 1/4 oz), based on King Arthur Baking's ingredient chart. A 250 ml metric cup holds about 127 g, and an old imperial cup (284 ml) holds about 144 g. Bread flour and cake flour are also listed at 120 g per cup, whole wheat flour at 113 g and rye flour at 106 g.
Q.How many grams are in a cup of sugar?
A. Granulated sugar is 198 g per US cup. Packed brown sugar is 213 g, unsifted powdered (confectioners' or icing) sugar is 113 g, and superfine (caster) sugar is 190 g. Honey is much heavier at 336 g per cup, and maple syrup is 312 g.
Q.How many grams are in a cup of butter, and how much is a stick?
A. A cup of butter is 227 g. A US stick is 1/2 cup, or 8 tablespoons, and weighs 113 g, so one tablespoon of butter is about 14 g.
Q.Is a US cup the same size as a UK or Australian cup?
A. No. A US cup is 236.6 ml. Recipes from the UK, Canada, New Zealand and Australia mostly use a 250 ml metric cup, which is about 5.7% bigger. Older British recipes may use an imperial cup of 284 ml, about 20% bigger than a US cup. Check which one your recipe was written for before you measure, or switch to grams.
Q.Is an Australian tablespoon different from a US or UK tablespoon?
A. Yes. An Australian tablespoon is 20 ml, a UK metric tablespoon is 15 ml and a US tablespoon is 14.8 ml. An Australian tablespoon therefore holds about 35% more than a US one. For all-purpose flour that is roughly 10 g per Australian tablespoon against 7.5 g per US tablespoon.
Q.How do I convert a UK or Australian recipe to US cups?
A. Open the "US ⇄ UK ⇄ AU cups" tab, set the system the recipe was written for, and convert to US. One 250 ml cup is about 1.06 US cups, which is roughly 1 cup plus 1 tablespoon. An Australian tablespoon is about 1 US tablespoon plus 1 teaspoon. For the most dependable result, use the "Cups → grams" tab and bake from the weight instead.
Q.How many tablespoons are in a cup?
A. A US cup is 16 tablespoons. A 250 ml metric cup is 16 2/3 tablespoons when the tablespoon is 15 ml (UK and most metric countries), and 12 1/2 tablespoons when it is the 20 ml Australian tablespoon.
Q.How do I convert grams to cups?
A. Divide the weight by the grams per cup for that ingredient. 300 g of all-purpose flour is 300 ÷ 120 = 2.5 US cups. 300 g of granulated sugar is 300 ÷ 198, about 1 1/2 cups. The "Grams → cups" tab does this for you and also breaks the answer into cups, tablespoons and teaspoons.
Q.Why does a cup of flour weigh less than a cup of sugar or honey?
A. A cup measures volume, and grams measure mass. How much mass fits in a cup depends on the ingredient's density and on how it packs. In this tool a US cup of cocoa powder is 84 g, all-purpose flour 120 g, granulated sugar 198 g and honey 336 g.
Q.Does kosher salt weigh the same as table salt?
A. No. According to King Arthur Baking's chart, a tablespoon of table salt is 18 g, Morton kosher salt is 16 g and Diamond Crystal kosher salt is 8 g. Pick the salt you are using in the ingredient list, or weigh it instead of measuring by the spoon.
Q.How many grams are in a teaspoon of baking powder, baking soda or yeast?
A. The source chart lists 4 g of baking powder per teaspoon, 3 g of baking soda per 1/2 teaspoon and 9 g of instant yeast per tablespoon (3 g per teaspoon). These figures are rounded to whole grams, so very small amounts can be off by about a gram.
Q.What is cornflour in a UK or Australian recipe?
A. In the UK and Australia, cornflour is cornstarch. In the US, "corn flour" usually means finely ground corn, so choose "Cornstarch" in the ingredient list when a UK or Australian recipe asks for cornflour.
Q.What is the 240 ml US legal cup?
A. US nutrition labels use a 240 ml cup. Recipes and measuring cups use the 236.6 ml customary cup, which is the size this tool uses for US measures.
Q.Is anything I type sent to a server?
A. No. All calculations run in your browser and nothing you type is sent to our server. The tool keeps your last mode, ingredient and unit choices in your browser's local storage so they are there next time. The amounts you type are not saved.
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