Convert between cups, tablespoons, grams, and milliliters — with real ingredient density so weight↔volume conversions stay accurate.
Densities are average reference values for common ingredients and vary with brand, moisture, packing, and grind (e.g., sifted vs. packed flour). For baking-critical recipes, measure by weight whenever possible.
A cup of flour can weigh anywhere from 120 g (sifted) to 150 g (packed) — that wide a swing is the top reason bakers go wrong. This converter uses average densities so a volume-to-weight swap stays close to what a recipe assumes. Same-unit conversions (cups→tbsp, g→oz) are exact; cross-to-weight and weight-to-volume depend on the ingredient you pick.
The same 1-cup volume holds very different weights depending on density: oil and butter sink into a cup heavier than flour, oats are the lightest, honey the heaviest (g per US cup).
A cookie recipe asks for 1 cup of all-purpose flour. Your kitchen scale shows grams.
Free cooking conversion calculator — convert cups, tbsp, tsp, fluid ounces, grams, ml, and liters with real ingredient density. Accurate weight↔volume conversions for flour, sugar, butter, honey, and 20+ ingredients. 100% private.
This converter translates between the volume and weight units you actually meet in the kitchen — cups, tablespoons, teaspoons, fluid ounces, milliliters, and liters on the volume side; grams, kilograms, ounces, and pounds on the weight side — and, crucially, across the two when you select an ingredient. Unlike a generic unit converter that treats a "cup" as one fixed weight, it uses per-ingredient density so that a cup of flour and a cup of honey convert correctly and differently. A built-in quick reference shows the weight of one US cup for ten common pantry staples. Everything runs locally in your browser with no signup.
(1) Pick an ingredient from a library of densities derived from USDA FoodData Central and common baking references. (2) Enter an amount and choose your from-unit and to-unit. (3) Same-kind conversions (cups→tbsp, g→oz) are exact arithmetic. (4) For weight↔volume, the tool first normalizes to a base (milliliters for volume, grams for weight), then crosses using the ingredient's density (ml × density = g, or g ÷ density = ml). Because density varies with brand and packing, results are reliable averages rather than laboratory certainty — when precision matters, weigh.
About 125 g for all-purpose flour (a 236 ml cup at ~0.53 g/ml average density). Sifted flour is lighter and packed flour heavier, which is why weighing is the most reliable method for baking.
Density. A 236 ml US cup of honey weighs roughly 336 g (~1.42 g/ml) while the same cup of all-purpose flour weighs about 125 g (~0.53 g/ml). Both fill the same volume but pack very different mass.
No. Within the same unit kind (volume→volume or weight→weight) conversions are exact. Crossing between weight and volume depends on the ingredient's density, which varies with brand, moisture, packing, and grind — treat results as accurate averages, and weigh for baking-critical recipes.
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