Cups2Grams

Cups to Grams Converter for Baking and Cooking

Convert cups to grams for flour, sugar, butter, oats, honey, milk, and many more ingredients using ingredient-specific density data. Whether you're searching for cups to grams flour, cups to grams sugar, or simply how many grams in a cup — this page gives you a live calculator plus practical reference tables.

Every result uses the standard US cup and ingredient-specific density values — making it easy to translate American recipes into metric weights for more consistent, repeatable baking.

Select ingredient
Amount in cups
cups
Accepts whole numbers, decimals, or fractions like ½ or 1½
All-Purpose Flour
125
grams
1 cup = 125 grams
Uses 125 g per US cup for All-Purpose Flour.

Why convert cups to grams?

  • 1.Weight is easier to repeat, share, and scale than volume.
  • 2.Ingredient-aware values are more accurate than generic charts.
  • 3.Converting US cups to grams helps when using international recipes with a digital scale.

Best uses for this page

Use this calculator when a recipe says "1 cup to grams", "2 cups to grams", or "1/2 cup to grams" and you want a cleaner metric version. Also useful before scaling recipes with the recipe scaler or printing a reference from the conversion charts.

Need the reverse direction — Use the grams to cups converter on the homepage for ingredient-specific conversions back to volume.

How to Use This Cups to Grams Converter

The page answers two kinds of search intent: quick calculator intent and detailed reference intent. Use the tool for a fast conversion, then scan the tables and ingredient notes below to understand why cups-to-grams results change so much between flour, sugar, butter, oats, and liquids.

1

Choose the exact ingredient

Pick the ingredient first — cups to grams flour, sugar, and butter all use different density values.

2

Enter the cup amount

Type whole numbers, decimals, or simple fractions such as 1/2 or 1 1/2 to match the recipe exactly.

3

Read the gram result

The calculator converts the cup volume into grams using the ingredient's stored grams-per-cup density.

4

Weigh and bake

Use the gram amount on a kitchen scale so your recipe is easier to repeat, troubleshoot, and scale.

US cups vs. metric cups to grams

This page uses the US cup (~240 ml) as default. A metric cup is 250 ml, so metric cups-to-grams results will be slightly higher. If your recipe comes from Australia, New Zealand, or another metric-cup country, use these values as a guide and confirm important ingredients by weight.

When this page is most useful

Cups-to-grams conversions matter most in baking because small shifts in flour, liquid, sugar, or fat can change structure and texture. Many bakers use this page before scaling recipes in the recipe scaler or before printing a reference from the conversion charts.

Cups to Grams Quick Reference Table

Common ingredients across ¼ cup, ⅓ cup, ½ cup, and 1 cup. Values use real ingredient density data rounded to the nearest whole gram.

Ingredient ¼ cup⅓ cup½ cup1 cup
All-Purpose Flour31 g42 g63 g125 g
Bread Flour32 g42 g64 g127 g
Cake Flour29 g38 g57 g114 g
Whole Wheat Flour30 g40 g60 g120 g
Almond Flour24 g32 g48 g96 g
Coconut Flour28 g37 g56 g112 g
Cocoa Powder25 g33 g50 g99 g
Granulated Sugar50 g67 g100 g200 g
Brown Sugar (packed)55 g73 g110 g220 g
Powdered Sugar30 g40 g60 g120 g
Honey85 g113 g170 g340 g
Maple Syrup81 g107 g161 g322 g
Butter57 g76 g114 g227 g
Olive Oil54 g72 g108 g216 g
Vegetable Oil55 g73 g109 g218 g
Milk61 g81 g122 g244 g
Heavy Cream60 g79 g119 g238 g
Yogurt61 g82 g123 g245 g
Cream Cheese58 g77 g116 g232 g
Water59 g79 g119 g237 g
Rolled Oats23 g30 g45 g90 g
Rice (uncooked)46 g62 g93 g185 g
Quinoa (dry)43 g57 g85 g170 g

Looking for more — Compare with the flour conversion chart and sugar conversion chart.

1 Cup to Grams, ½ Cup to Grams, and 2 Cups to Grams

The most searched kitchen amounts — ¼ cup, ⅓ cup, ½ cup, 1 cup, and 2 cups — for the five most popular ingredients.

Ingredient ¼ cup⅓ cup½ cup1 cup2 cups
All-Purpose Flour31 g42 g63 g125 g250 g
Granulated Sugar50 g67 g100 g200 g400 g
Butter57 g76 g114 g227 g454 g
Rolled Oats23 g30 g45 g90 g180 g
Honey85 g113 g170 g340 g680 g

Need more ingredients or amounts — Search the ingredients directory or scale the full recipe in the recipe scaler.

Why Cups to Grams Conversions Change by Ingredient

The biggest mistake in online conversion charts is pretending volume converts to one fixed weight. Density, packing, air content, and ingredient structure all change how much mass fits into a cup. The four groups below explain why one chart number is never enough.

Flour is the most variable cups-to-grams ingredient

Flour is where small measuring errors create the biggest baking problems. A recipe that should use 125 g of all-purpose flour can end up with significantly more if the cup is scooped directly into the bag — making muffins dry, cookies cakey, and bread stiffer than intended. Searches like "how many grams in a cup of flour" are common precisely because bakers notice the difference in texture almost immediately.

Spoon and level

125 g per cup

Best reference for repeatable home baking.

Sifted flour

110–115 g per cup

Lighter because more air remains in the cup.

Scooped directly

140 g+

Often too heavy for cakes, muffins, and cookies.

Sugar changes by crystal size and packing method

Cups-to-grams sugar conversions are not interchangeable. Granulated sugar is dense and consistent; powdered sugar is much lighter because it contains more air; packed brown sugar is heavier because the cup is deliberately compressed. Choosing the wrong sugar type in a frosting or cookie recipe can shift sweetness, spread, moisture retention, and texture.

Granulated sugar

200 g per cup

Standard white sugar for cookies, cakes, and syrups.

Powdered sugar

120 g per cup

Lighter because finely milled and full of air.

Brown sugar packed

220 g per cup

Heavier — packed and contains molasses.

Butter and liquids are more stable, but not identical

Bakers often assume every liquid behaves like water, but that fails quickly when comparing milk, honey, oil, and melted fat. Butter is about 227 g per cup, water about 237 g, milk around 244 g, and honey is far heavier at roughly 340 g. That difference matters for frostings, fillings, and enriched doughs where precise ratios affect texture and consistency.

Butter

227 g

Frostings, bars, and pastry.

Water

237 g

The reference most people assume all liquids follow.

Milk

244 g

Slightly heavier due to solids and fat.

Honey

340 g

Very dense — volume-to-weight differences are dramatic.

Oats and alternative flours stay light by volume

Lightweight ingredients such as rolled oats, almond flour, and coconut flour look bulky in the cup but weigh far less than wheat flour or sugar. That matters when adapting gluten-free recipes or adding texture to granola, crumble toppings, or pancakes. Expect oat results to be much lower than flour — oats trap far more air in the same volume.

Rolled Oats

90 g

Very light — high air volume.

Almond Flour

96 g

Ground almonds hold a lot of air.

Coconut Flour

112 g

Highly absorbent — used in smaller amounts.

Whole Wheat

120 g

Denser than cake flour due to bran.

Cups to Grams — Frequently Asked Questions

Why does 1 cup convert to different gram values for different ingredients?
Cups measure volume, while grams measure weight. Different ingredients fill the same cup with different mass because their density is not the same. One cup of all-purpose flour is about 125 g, one cup of granulated sugar is about 200 g, and one cup of honey is about 340 g. That is why a single universal cups-to-grams rule produces inaccurate baking results.
How many grams is 1 cup of all-purpose flour?
One US cup of all-purpose flour is about 125 g when measured with the spoon-and-level method. If flour is scooped directly from the bag, the cup can become much heavier — sometimes 140 g or more. For reliable cakes, cookies, and bread dough, treat 125 g as the standard reference and confirm with a scale when precision matters.
How many grams is 1 cup of sugar?
It depends on the sugar type. One cup of granulated sugar is about 200 g, one cup of powdered sugar is about 120 g, and one cup of packed brown sugar is about 220 g. Recipes often say only "sugar" but the gram result changes significantly by variety, so it is better to choose the exact sugar in the converter before baking.
How many grams is 1 cup of butter?
One cup of butter is about 227 g, which also matches two standard US sticks. Half a cup is about 113 g and ¼ cup is about 57 g. Butter is one of the more consistent cups-to-grams conversions because its density is reliable, but weighing it on a kitchen scale is still the best option for repeatable pastry and cookie texture.
Is this cups to grams converter based on US cups or metric cups?
This page uses the standard US cup (~240 ml) as the default reference. A metric cup is 250 ml, so metric cups-to-grams results can be slightly higher for the same ingredient. If you are adapting Australian or Canadian recipes, use the values here as a practical guide and verify important baking formulas by weight.
How many grams is ½ cup of flour?
For all-purpose flour, ½ cup is about 63 g. Bread flour is about 64 g, cake flour about 57 g, and whole wheat flour about 60 g. This is a good example of why "½ cup to grams" searches still need the ingredient name to get a trustworthy answer.
How many grams is ¼ cup of common ingredients?
¼ cup of all-purpose flour: ~31 g. Granulated sugar: ~50 g. Butter: ~57 g. Rolled oats: ~23 g. Honey: ~85 g. The exact answer changes by ingredient, which is why the quick-reference tables on this page are more useful than a single generic chart.
When should I use a kitchen scale instead of cups?
Use a scale whenever you want consistency — especially for bread, laminated dough, macarons, cheesecake, and any recipe you plan to scale up or repeat. Cups are affected by scooping method, ingredient brand, humidity, and cup standard. A scale removes those variables and makes it easier to compare your results with professional baking formulas.
Can I convert grams back to cups on this site?
Yes. Use the grams to cups converter on the homepage for ingredient-specific conversions back to volume. That is useful when comparing international recipes, building printable kitchen charts, or translating a professional formula for a home baker who still measures in cups.
Why is packed brown sugar heavier than white sugar in the same cup?
Brown sugar is usually measured packed — pressed firmly into the cup to remove air gaps. That packing raises the weight per cup to about 220 g, versus 200 g for loose granulated sugar. Recipes that specify packed brown sugar expect that higher weight along with the extra moisture from molasses.

Need to go the other way?

Convert grams back to cups for any ingredient — instantly.

Open Grams to Cups Converter →