General

Cups to Grams Converter

Convert cooking measurements between cups, grams, ounces and milliliters using accurate ingredient densities.

Ingredient

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Cups

Grams

Equivalent measurements

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Pick an ingredient and enter cups or grams.

What is this calculator?

It converts US-cup measurements to grams (or vice versa) for the most common baking and cooking ingredients. Each ingredient has a different density, so 1 cup of flour weighs much less than 1 cup of honey. The tool uses tested density values published by King Arthur Baking and the USDA so your bake is consistent every time.

How to use it

Pick an ingredient from the dropdown, then either type a number of cups or a number of grams. The other field updates automatically and milliliters and ounces are shown for reference. The cup used here is the US legal cup of 240 mL, the volume found on most American measuring cups.

How the math works

Each ingredient is stored with a density in grams per cup. Grams = cups × density, and cups = grams ÷ density. Volume in milliliters uses 240 mL per US cup. Ounces use 28.3495 g per ounce.

Common conversions

Ingredient	1 cup	1/2 cup	1 tbsp
Flour, all-purpose	125 g	63 g	7.8 g
Flour, bread	130 g	65 g	8.1 g
Flour, cake	114 g	57 g	7.1 g
Flour, whole wheat	120 g	60 g	7.5 g
Sugar, granulated	200 g	100 g	12.5 g
Sugar, brown (packed)	220 g	110 g	13.8 g
Sugar, powdered	120 g	60 g	7.5 g
Butter	227 g	114 g	14.2 g
Milk	244 g	122 g	15.3 g
Water	237 g	119 g	14.8 g
Oil, vegetable	218 g	109 g	13.6 g
Oats, rolled	90 g	45 g	5.6 g
Rice, white (uncooked)	195 g	98 g	12.2 g
Lentils, dry	192 g	96 g	12 g
Honey	340 g	170 g	21.3 g
Maple syrup	322 g	161 g	20.1 g
Cocoa powder	85 g	43 g	5.3 g
Baking powder	192 g	96 g	12 g
Baking soda	220 g	110 g	13.8 g
Salt, table	273 g	137 g	17.1 g
Yeast, dry	149 g	75 g	9.3 g
Cornstarch	128 g	64 g	8 g
Peanut butter	258 g	129 g	16.1 g
Yogurt	245 g	123 g	15.3 g
Cream cheese	232 g	116 g	14.5 g
Heavy cream	238 g	119 g	14.9 g
Chocolate chips	175 g	88 g	10.9 g
Almonds, whole	143 g	72 g	8.9 g
Walnuts, chopped	120 g	60 g	7.5 g
Breadcrumbs, dry	108 g	54 g	6.8 g

Frequently asked questions

Why does 1 cup of flour weigh different amounts in different recipes?

Because flour is light and compresses easily. A scooped, packed cup can weigh 150 g while a spooned-and-leveled cup weighs only 120 g. We use 125 g per cup, the value King Arthur Baking and most American cookbooks publish for spooned and leveled all-purpose flour.

Is the cup here US or metric?

It is the US customary cup of 240 mL. The metric cup is 250 mL and the imperial UK cup is 284 mL, so if you are following a UK or Australian recipe you may need to multiply by 1.04 or 1.18 respectively.

Can I trust the conversion for sticky things like honey?

Yes. Honey, peanut butter and maple syrup are denser than water, so 1 cup of honey is about 340 g while 1 cup of water is 240 g. The tool uses ingredient-specific densities, not a generic ml-to-gram swap.

Why use grams instead of cups?

Weighing by grams removes packing error. Two cooks measuring 1 cup of flour by volume can disagree by 30 g, which is a noticeable difference in bread or cookies. Two cooks weighing 125 g will not.

What does "packed" mean for brown sugar?

Press the sugar firmly into the cup so it holds its shape when turned out. A packed cup of light brown sugar weighs about 213 g, roughly 60% more than its loose volume.

Where do these density values come from?

The values combine King Arthur Baking's ingredient weight chart, USDA SR-28 nutrition data and laboratory measurements. They are accurate within roughly 5% for most home baking, which is well below the variation introduced by humidity and packing.

Cups to Grams Converter