Cooking Converter
Convert cups, tablespoons, teaspoons and millilitres to grams and ounces for 11 common ingredients — using published King Arthur Baking weights, not guesswork.
Result
How It Works
Cups measure volume and grams measure weight, so there is no single conversion between them — it depends on the ingredient. A cup of flour weighs 120 g, granulated sugar 198 g, and honey 336 g — each ingredient has a different density. The weights on this page come from the published King Arthur Baking ingredient weight chart, measured with the spoon-and-level method: spoon the ingredient into the cup and sweep it flat, rather than scooping from the bag.
Volume is exact: 1 US cup = 16 tablespoons = 48 teaspoons = 236.588 ml. The converter turns your amount into grams using the ingredient's weight per cup, then into the unit you want (1 oz = 28.3495 g; results to four decimal places).
Worked examples: 2 cups of all-purpose flour = 2 × 120 = 240 g = 8.47 oz. 1 cup of granulated sugar = 198 g = 6.98 oz. 250 g of flour = 250 / 120 = 2.0833 cups. 1 tablespoon of flour = 120 / 16 = 7.5 g; 1 teaspoon of table salt = 288 / 48 = 6 g.
How to Use This Converter
Pick an ingredient, enter an amount, choose the units — the answer updates live, with every unit shown in the table underneath.
- Pick the ingredient — each one shows its published weight per cup, so you can see the density being used.
- Enter the amount and units — convert either way: volume to weight (cups to grams) or weight to volume (grams to cups).
- Read the table — the same amount in cups, tablespoons, teaspoons, ml, grams and ounces at once.
The Reset button restores the example (2 cups of flour to grams) so you can start over.
Tips and Practical Advice
Measuring by weight is the easiest way to make baking repeatable — but when a recipe gives cups, how you fill them matters as much as the number.
- Spoon and level dry ingredients. Scooping flour straight from the bag packs it and can add 20–30% — spoon it into the cup and sweep off the excess to match the published weights.
- Pack brown sugar firmly. Its 213 g per cup assumes it is pressed into the measure; loosely spooned, it weighs far less.
- Weigh butter by the stick. One US stick is 113 g (8 tablespoons), so a cup is two sticks at 226 g — easier than melting it into a measuring jug.
- Check which cup a recipe means. These weights use the US cup (236.6 ml). A metric cup is 250 ml, about 6% larger.
Frequently Asked Questions
How many grams are in a cup of flour?
120 g for all-purpose flour (spooned and levelled, King Arthur Baking). Bread flour is also 120 g per cup; whole wheat flour is 113 g.
How many grams are in a cup of sugar?
198 g for granulated sugar and 213 g for packed brown sugar. Confectioners' (powdered) sugar is much lighter at 113 g per cup.
How many grams are in a cup of butter?
226 g — one cup is two sticks, and each stick is 113 g (8 tablespoons).
How many ml are in a US cup?
236.588 ml, usually rounded to 236.6 ml. A US cup holds 16 tablespoons or 48 teaspoons.
Last updated: