UtilityBaseCalculators
Cooking Converter
Cups to grams and back, per ingredient, flour, sugar, butter, and 25 more.
Updated July 8, 2026
How to use the cooking converter
- 1Pick the ingredient. The density is loaded automatically.
- 2Choose direction: volume to grams, or grams to volume.
- 3Enter the amount in cups, tablespoons, teaspoons, or ml.
- 4Read the result in grams, weight-ounces, and cup fractions.
Common uses
- Converting an American cup-based recipe to a kitchen scale
- Following a European gram-based recipe with US measuring cups
- Halving or doubling a recipe without fraction gymnastics
- Settling whether a stick of butter matches the grams called for
Frequently asked questions
Why isn't there one universal cups-to-grams number?
Because cups measure volume and grams measure mass, and density varies enormously by ingredient: water is 237 g per cup, all-purpose flour 120, honey 340, cocoa powder 85. Any converter giving a single answer for 'cups to grams' is quietly assuming water, wrong for nearly everything you bake with.
Why do my cups of flour weigh more than 120 g?
Scooping straight from the bag compacts flour to 140–150 g per cup, up to 25% extra, which is why cookies turn out dry and bread turns dense. The 120 g reference assumes fluffing the flour, spooning it into the cup, and leveling. Or skip the ritual: a kitchen scale removes the entire problem.
Are fluid ounces the same as ounces?
No, and this trap ruins recipes: fluid ounces measure volume, weight ounces measure mass. They coincide (roughly) only for water-like liquids. Eight fluid ounces of flour weighs about 4.2 weight-ounces. This tool labels weight ounces explicitly so the two never get crossed.
How accurate are the density figures?
They're standard baking-reference values of the King Arthur / USDA type, accurate to within a few percent for typical preparation. Real-world variance comes from packing (brown sugar is specified packed), humidity, and grind. For finicky bakes, macarons, laminated doughs, weigh with a scale; for everything else these figures are plenty.
About this tool
The cooking converter answers the question generic unit converters can't: how much does a cup of this weigh? Because a cup measures volume and ingredients differ wildly in density, a cup of honey weighs almost three times a cup of cocoa powder, every conversion here is per-ingredient, using standard baking-reference densities (flour at 120 g per spoon-and-leveled cup, the King Arthur convention). Converts cups, tablespoons, teaspoons, fluid ounces, and milliliters to grams and weight-ounces, and back. All local, works offline.
Like most tools on UtilityBase, the cooking converter runs entirely in your browser. Nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more calculators here.
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