Cups to Grams Converter

Convert cups to grams for 28 common cooking and baking ingredients — flour, sugar, butter, honey, and more — with ounces, tablespoons, and millilitres.

Share this calculator

Cups to grams converter Convert cups to grams for common cooking and baking ingredients using density-accurate conversions.

Ingredient source

Result

125 grams

1 cup of all-purpose flour weighs 125 g.

Ounces
4.41 oz
Tablespoons
16 tbsp
Millilitres
236.59 ml
Density
125 g/cup

Why density matters

A cup of flour weighs far less than a cup of honey because their densities are different. Always convert by ingredient, not by a single fixed ratio, for accurate baking and cooking results.

Also in Ingredients & Conversions

Grams to Cups Converter Rice Calculator Rice Water Ratio Calculator Teaspoons to Grams Converter

Cooking Converter

Cups to grams converter: accurate weight conversions for cooking ingredients

Convert cups to grams instantly for 28 common cooking and baking ingredients. Because every ingredient has a different density, one cup of flour weighs 125 grams while one cup of honey weighs 340 grams. Select your ingredient, enter the number of cups, and get the precise gram weight along with ounces, tablespoons, and millilitres.

Why cups and grams are not interchangeable

Cups are a volume measurement while grams are a weight measurement. The two are only equivalent when you know the density of the ingredient being measured. A US cup equals 236.588 ml of space, but the weight of that space depends entirely on what fills it. Light, aerated ingredients such as flour or cocoa powder weigh far less per cup than dense liquids like honey or maple syrup.

Professional bakers almost universally measure by weight because it is more precise and repeatable. A cup of flour can vary by 20% depending on whether it is scooped, spooned, or sifted. Weighing on a kitchen scale removes that variability and produces consistent results every time.

Weight (g) = Cups × Density (g/cup)

For example, 2 cups of granulated sugar at 200 g/cup = 400 g.

Ounces = Grams ÷ 28.3495

Converts the gram result to US customary ounces.

Common ingredient densities and how they are determined

The density values used in this converter follow the standard spoon-and-level method: the ingredient is spooned into a standard US measuring cup and levelled with a straight edge. This is the method assumed by most American recipe books. The USDA National Nutrient Database and King Arthur Baking Company publish widely referenced density tables that this tool draws from.

Packed ingredients like brown sugar have a higher density because air is compressed out during measurement. Sifted ingredients like powdered sugar have a lower density because air is introduced. When a recipe specifies "packed" or "sifted", the density changes — this converter uses the most common convention for each ingredient.

Limitations of volume-to-weight conversion

This tool converts US customary cups (236.588 ml). UK, Australian, and metric cups differ in size — a metric cup is 250 ml and an Australian cup is also 250 ml, so conversions based on US cups will be slightly off for recipes written in those systems.

Ingredient density varies between brands, humidity levels, and how the ingredient is stored. The values here are reliable averages, but for precision baking at scale or in professional kitchens, always verify with a calibrated digital scale.

Frequently asked questions

How many grams is 1 cup of flour?

One US cup of all-purpose flour weighs approximately 125 grams using the spoon-and-level method. Bread flour is slightly heavier at 130 g/cup, and cake flour is lighter at 114 g/cup. Whole wheat flour weighs about 128 g/cup.

 Why do different ingredients have different grams per cup?

Because a cup measures volume, not weight. Ingredients with higher density — like honey (340 g/cup) or butter (227 g/cup) — pack more mass into the same space than lighter ingredients like rolled oats (90 g/cup) or shredded coconut (85 g/cup).

 Can I use this converter for metric cups or Australian cups?

This tool is calibrated for US cups (236.588 ml). A metric or Australian cup is 250 ml, about 5.7% larger. For metric cups, multiply the cup amount by 1.057 before entering it, or enter the volume in millilitres directly and convert from there.

Related

More from nearby categories

These related calculators come from the same leaf category, nearby sibling categories, or the same top-level topic.

Grams to Cups Converter

Convert grams to cups for 28 common cooking and baking ingredients — enter a gram weight, pick your ingredient, and get cups, tablespoons, teaspoons, ounces, and millilitres.

Open calculator

Teaspoons to Grams Converter

Convert teaspoons to grams for 13 common cooking ingredients — salt, sugar, flour, honey, and more — with tablespoon, cup, millilitre, and ounce equivalents.

Open calculator

Rice Calculator

Calculate exactly how much water to add and how long to cook rice for seven common varieties, with cooked yield and serving estimates.

Open calculator

Rice Water Ratio Calculator

Look up the correct rice-to-water ratio for any rice variety — white, basmati, jasmine, brown, wild, arborio — with exact quantities for your amount.

Open calculator

Privacy choices

If you allow analytics, we may use Google Analytics and Microsoft Clarity to better understand how the site is used. Analytics remain off unless you accept.