Cups to Grams Converter and Chart
1 US cup is 240 ml, so 1 cup of all-purpose flour is 125 g, granulated sugar 200 g and butter 227 g. A cup measures volume, not weight, so the grams depend on the ingredient. Pick yours in the converter for any amount, or read the chart for the 15 cup measures recipes use most.
125 g
1 cup of all-purpose flour = 125 g (US legal cup, 240 ml)
1 cup of all-purpose flour = 125 g (US legal cup, 240 ml)
All-Purpose Flour: 125 g per US cup. See full table →
CupsToGrams, cupsngrams.com
Baking from a UK, Australian or New Zealand recipe? Their cup is not the American one. Pick the standard your recipe assumes and every cup figure follows it.
Cups to grams chart
Grams for 15 common cup measures of the eight ingredients recipes call for most, in US cups of 240 ml. Each amount links to its own page covering all 48ingredients; each column heading links to that ingredient's converter.
| Amount | Flour all-purpose, plain | Sugar granulated | Brown sugar packed | Powdered sugar icing sugar | Butter | Water | Milk | Honey |
|---|---|---|---|---|---|---|---|---|
| 1/8 cup (0.125) | 15.6 g | 25 g | 27.5 g | 15 g | 28.4 g | 30 g | 30.5 g | 42.5 g |
| 1/4 cup (0.25) | 31.3 g | 50 g | 55 g | 30 g | 56.8 g | 60 g | 61 g | 85 g |
| 1/3 cup (0.33) | 41.7 g | 66.7 g | 73.3 g | 40 g | 75.7 g | 80 g | 81.3 g | 113 g |
| 1/2 cup (0.5) | 62.5 g | 100 g | 110 g | 60 g | 114 g | 120 g | 122 g | 170 g |
| 2/3 cup (0.67) | 83.3 g | 133 g | 147 g | 80 g | 151 g | 160 g | 163 g | 227 g |
| 3/4 cup (0.75) | 93.8 g | 150 g | 165 g | 90 g | 170 g | 180 g | 183 g | 255 g |
| 1 cup | 125 g | 200 g | 220 g | 120 g | 227 g | 240 g | 244 g | 340 g |
| 1 1/4 cups (1.25) | 156 g | 250 g | 275 g | 150 g | 284 g | 300 g | 305 g | 425 g |
| 1 1/3 cups (1.33) | 167 g | 267 g | 293 g | 160 g | 303 g | 320 g | 325 g | 453 g |
| 1 1/2 cups (1.5) | 188 g | 300 g | 330 g | 180 g | 341 g | 360 g | 366 g | 510 g |
| 1 2/3 cups (1.67) | 208 g | 333 g | 367 g | 200 g | 378 g | 400 g | 407 g | 567 g |
| 1 3/4 cups (1.75) | 219 g | 350 g | 385 g | 210 g | 397 g | 420 g | 427 g | 595 g |
| 2 cups | 250 g | 400 g | 440 g | 240 g | 454 g | 480 g | 488 g | 680 g |
| 2 1/2 cups (2.5) | 313 g | 500 g | 550 g | 300 g | 568 g | 600 g | 610 g | 850 g |
| 3 cups | 375 g | 600 g | 660 g | 360 g | 681 g | 720 g | 732 g | 1020 g |
Flour is spooned and levelled, brown sugar firmly packed. Fractions and decimals are the same amount, so 1/4 cup and 0.25 cups read from one row. Another ingredient? The ingredient weight chart has all 48.
Why cups to grams is not one number
The single most common mistake in kitchen conversion is assuming a cup always weighs the same. It does not. A cup is a measure of volume, the space something takes up, while a gram is a measure of mass, how much it weighs. The bridge between the two is density, and density varies enormously from ingredient to ingredient. A cup of light, airy all-purpose flour weighs around 125 grams, but a cup of dense, sticky honey weighs about 340 grams. Using one conversion figure for both would leave your recipe badly off balance.
This is exactly why CupsToGrams asks you to choose an ingredient first. Each one carries its own density, stored as grams per US cup, and the converter uses it to translate cups, tablespoons and teaspoons into grams. The same density works in reverse, so you can also go from grams back to cups. Mass units like ounces and pounds convert straight to grams, because weight does not care what the ingredient is.
For everyday cooking, cup measures are perfectly fine. But for baking, where the ratio of flour to liquid to fat decides whether a cake is tender or tough, weighing in grams gives far more consistent results. Professional bakers almost always work by weight for this reason. A simple digital kitchen scale, combined with the grams figures here, takes the guesswork out of every recipe.
Need the other direction? Use the grams to cups converter. Working with liquids? Try the cups to millilitres converter, or switch your oven with the temperature converter.
Frequently asked questions
How many grams are in a cup?
It depends entirely on the ingredient. A US cup of water is about 240 grams, a cup of all-purpose flour is about 125 grams, a cup of granulated sugar is about 200 grams, and a cup of butter is 227 grams. There is no single answer because a cup measures volume, not weight.
Why can I not just use one cups to grams number?
Because different ingredients have different densities. A cup of feathers and a cup of lead would weigh very differently, and the same is true of flour versus honey. That is why this converter asks which ingredient you are measuring before giving you grams.
Is a US cup the same as a metric cup?
No. This converter uses the US cup at 240 millilitres, the most common assumption in recipes. A metric cup, used in Australia and parts of Europe, is 250 millilitres. You may also see the US cup given as 236.6 ml, its stricter customary definition; the 3.4 ml gap is irrelevant next to how differently an ingredient packs. Converting to grams avoids the question altogether.
How do I convert cups to grams accurately?
Choose your ingredient, enter the amount in cups, and read off the grams. Behind the scenes the tool multiplies the volume by that ingredient's density. For the most accurate results in baking, weigh with a kitchen scale rather than measuring by cup.
Where can I get the numbers behind this chart?
Every figure on this page comes from one density per ingredient, the same one the ingredient pages use. All 48 are published on the ingredient weight chart as a free CSV and JSON download under CC BY 4.0, with grams per cup, tablespoon and teaspoon.