Cooking measurement converter
Convert cups to grams, tablespoons to millilitres and ounces to cups using real per-ingredient densities for flour, sugar, butter and more.
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Spooned into the cup and levelled. Scooping straight from the bag packs in up to 145 g, which is why weighing flour is worth it. 1 US cup ≈ 125 g (density 0.5283 g/mL).
1 cup = 125 g
Automatic formatting keeps up to 12 significant digits and switches to scientific notation only for numbers past 10¹⁸ or below 10⁻⁹. You can paste values with thousands separators, and fractions such as 3/4 or 1 1/2 are understood too.
g = cup × 125
Same thing written another way: g = cup ÷ 0.008
Your value: 1 × 125 = 125 g
Cup (US): 8 US fl oz = 16 tbsp.
| cup | g |
|---|---|
| 0.25 | 31.25 |
| 0.5 | 62.5 |
| 0.75 | 93.75 |
| 1 | 125 |
| 1.5 | 187.5 |
| 2 | 250 |
| 2.5 | 312.5 |
| 3 | 375 |
| 4 | 500 |
| 6 | 750 |
| 8 | 1,000 |
| 10 | 1,250 |
| g | cup |
|---|---|
| 0.25 | 0.002 |
| 0.5 | 0.004 |
| 0.75 | 0.006 |
| 1 | 0.008 |
| 1.5 | 0.012 |
| 2 | 0.016 |
| 2.5 | 0.02 |
| 3 | 0.024 |
| 4 | 0.032 |
| 6 | 0.048 |
| 8 | 0.064 |
| 10 | 0.08 |
| Unit | Symbol | Value in mL | Notes |
|---|---|---|---|
| Cup (US)Volume | cup | 1 cup = 236.5882365 mL | 8 US fl oz = 16 tbsp. |
| Cup (metric, 250 mL)Volume | cup (metric) | 1 cup (metric) = 250 mL | UK, Australia and New Zealand recipes. |
| Tablespoon (US)Volume | tbsp | 1 tbsp = 14.7867647812 mL | 3 teaspoons. |
| Tablespoon (metric, 15 mL)Volume | tbsp (15 mL) | 1 tbsp (15 mL) = 15 mL | UK and EU. Australia uses 20 mL. |
| Tablespoon (Australian, 20 mL)Volume | tbsp (AU) | 1 tbsp (AU) = 20 mL | 4 Australian teaspoons. |
| Teaspoon (US)Volume | tsp | 1 tsp = 4.92892159375 mL | — |
| Teaspoon (metric, 5 mL)Volume | tsp (5 mL) | 1 tsp (5 mL) = 5 mL | — |
| Fluid ounce (US)Volume | fl oz | 1 fl oz = 29.5735295625 mL | — |
| Fluid ounce (imperial)Volume | fl oz (UK) | 1 fl oz (UK) = 28.4130625 mL | — |
| MillilitreVolume | mL | 1 mL = 1 mL | — |
| LitreVolume | L | 1 L = 1,000 mL | — |
| Pint (US)Volume | pt | 1 pt = 473.176473 mL | — |
| Quart (US)Volume | qt | 1 qt = 946.352946 mL | — |
| GramWeight | g | 1 g = 1.892705892 mL | — |
| KilogramWeight | kg | 1 kg = 1,892.705892 mL | — |
| OunceWeight | oz | 1 oz = 53.6573094541 mL | Weight ounce — not the same as a fluid ounce. |
| PoundWeight | lb | 1 lb = 858.516951265 mL | — |
| Stick of butterWeight | stick | 1 stick = 214.632848153 mL | A US stick is ¼ lb = ½ cup. |
How to convert a recipe measurement
- Pick the ingredient first. Volume-to-volume conversions never change, but cups to grams depends entirely on what is in the cup.
- Type the quantity into either field. Fractions are understood: 3/4, 1 1/2 and the single characters ½, ¼ and ⅓ all work, because that is how recipes are written.
- Choose the units. The list separates volume units from weight units, and labels the US, metric and Australian spoons separately.
Why a cup of flour is not a cup of sugar
A cup is a volume — 236.6 mL in the US, 250 mL in the UK and Australia. A gram is a weight. Converting between them requires knowing the density of what you are measuring, and kitchen ingredients vary enormously. A US cup holds 125 g of flour but 340 g of honey: nearly three times as much, for the same space.
| Ingredient | 1 US cup | 1 tbsp | 1 tsp |
|---|---|---|---|
| Water | 237 g | 14.8 g | 4.9 g |
| Flour, all-purpose (spooned) | 125 g | 7.8 g | 2.6 g |
| Bread flour | 128 g | 8.0 g | 2.7 g |
| Sugar, granulated | 200 g | 12.5 g | 4.2 g |
| Brown sugar, packed | 220 g | 13.8 g | 4.6 g |
| Powdered sugar | 120 g | 7.5 g | 2.5 g |
| Butter | 227 g | 14.2 g | 4.7 g |
| Milk, whole | 244 g | 15.2 g | 5.1 g |
| Vegetable oil | 217 g | 13.6 g | 4.5 g |
| Honey | 340 g | 21.2 g | 7.1 g |
| Rice, white uncooked | 185 g | 11.6 g | 3.9 g |
| Rolled oats | 90 g | 5.6 g | 1.9 g |
| Cocoa powder | 85 g | 5.3 g | 1.8 g |
| Salt, fine table | 288 g | 18.0 g | 6.0 g |
How accurate are these numbers?
Liquids are exact: water, milk and oil have stable densities, so a millilitre of water really is a gram. Powders are not, and honest baking references disagree by up to 15 % on flour. The reason is packing. Flour spooned gently into a cup and levelled with a knife weighs about 125 g; the same cup dipped straight into the bag and shaken settles to 145 g or more. That is an extra sixth of the flour in your cake.
This converter uses the spoon-and-level figures published by King Arthur Baking and used by most modern recipe developers. If a recipe was written by someone who scoops, expect to need a touch more liquid. The real fix is a 10 gram scale, which is why professional recipes are written in grams in the first place.
Spoon and cup sizes around the world
| Measure | US | UK / metric | Australia |
|---|---|---|---|
| Teaspoon | 4.93 mL | 5 mL | 5 mL |
| Tablespoon | 14.79 mL | 15 mL | 20 mL |
| Cup | 236.6 mL | 250 mL | 250 mL |
| Fluid ounce | 29.57 mL | 28.41 mL | 28.41 mL |
| Pint | 473 mL | 568 mL | 568 mL |
The Australian tablespoon is the one that catches people out: it holds four teaspoons, not three. In a recipe with several tablespoons of a strong ingredient — baking powder, salt, spice — using the wrong one is enough to ruin the dish, so it is listed separately above.
Butter, sticks and the American quarter-pound
US butter is sold in sticks of a quarter pound: 113 g, half a cup, 8 tablespoons, or 4 ounces. The wrapper is printed with tablespoon marks so you can cut without measuring. Elsewhere butter comes in 200 g or 250 g blocks and recipes give grams. "Stick" is included as a unit above so you can convert an American recipe without doing that step in your head.
| Butter | Grams | Cups | Tablespoons |
|---|---|---|---|
| 1 stick | 113 g | 1/2 | 8 |
| 2 sticks | 227 g | 1 | 16 |
| 4 sticks (1 lb) | 454 g | 2 | 32 |
Questions
Why does a cup of flour weigh less than a cup of sugar?
Because weight per cup depends on density. A US cup holds 125 g of spooned flour, 200 g of granulated sugar and 340 g of honey — pick the ingredient above and the maths follows.
How many grams is one cup of flour?
125 g for all-purpose flour spooned into the cup and levelled off. Scooping straight from the bag compacts it to as much as 145 g, which is why bakers weigh instead.
Are US and metric cups the same?
No. A US cup is 236.6 mL; the metric cup used in the UK, Australia and New Zealand is exactly 250 mL. Both are in the unit list, along with the 15 mL and 20 mL tablespoons.
How much is a stick of butter?
A US stick is a quarter-pound: 113 g, half a cup, or 8 tablespoons. It is included as its own unit so you can convert a recipe without doing that sum first.
Can I type fractions like ¾?
Yes. The input accepts 3/4, 1 1/2 and the single-character fractions such as ½ and ¼, because that is how recipes are actually written.