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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