Cooking Measurement Converter
Convert recipe measurements between grams, ounces, cups, spoons and millilitres. Choose an ingredient when switching between weight and volume.
Enter an amount and the units you want to convert.
How to convert cooking measurements
- Enter an amount. You can use a decimal, a fraction such as 1/2, or a mixed number such as 1 1/2.
- Select the original unit and the unit you need. US and metric cups and spoons are labelled separately.
- If you switch between weight and volume, choose the closest ingredient. Select Convert measurement to see the result and the conversion used.
Weight and volume are different
Grams and weight ounces measure mass. Millilitres, cups and fluid ounces measure volume. Converting 100 g into ounces needs a unit factor. Converting a cup into grams also needs the ingredient’s density.
Weight in grams = volume in ml × density in g/ml
Volume in ml = weight in grams ÷ density in g/ml
For the wheat-flour reference used here, density is 0.521 g/ml. Half a US cup is about 118.294 ml, giving an estimated 61.63 g of flour. Half a metric cup is 125 ml, giving an estimated 65.13 g. Scooping, settling and the flour itself can change the actual weight; use a scale when precision matters.
Which cup or spoon should I choose?
Use the unit written in the recipe or marked on your measuring utensil. This tool uses a US customary cup of 236.5882365 ml and a metric cup of 250 ml. Its metric tablespoon is 15 ml and metric teaspoon is 5 ml. A US tablespoon is about 14.787 ml and US teaspoon about 4.929 ml.
A US fluid ounce is about 29.574 ml; an Imperial fluid ounce is about 28.413 ml. Neither is the same as a weight ounce. This tool does not include the separate 240 ml US nutrition-label cup or the 20 ml Australian tablespoon.
Reading a US or UK recipe
Follow the volume marked on your measuring utensil. For a UK spoon marked 15 ml, choose the metric tablespoon (15 ml); the separately labelled US tablespoon is slightly smaller. Choose US or Imperial fluid ounces exactly as written on the source. If the recipe gives a weight in grams, use that weight rather than estimating it from cups.
Ingredient reference values
Weight-to-volume results are estimates based on these selected entries from the FAO/INFOODS Density Database, version 2. Products, preparation and measuring technique can differ. The listed source codes identify the underlying references inside the database.
| Ingredient | Density (g/ml) |
|---|---|
| Water (CG) | 1 |
| Wheat flour (reference) (S&W) | 0.521 |
| White sugar (reference) (FNDDS 4.1) | 0.88 |
| Olive oil (TB) | 0.918 |
| White rice, raw (RC) | 0.82 |
| White rice, cooked (RC) | 0.73 |
| Table salt (reference) (S&W) | 1.217 |
| Plain unsweetened yoghurt (FNDDS 4.1) | 1.06 |
For a custom ingredient, divide a known weight in grams by its measured volume in ml, then enter that density. This assumes the same packing and preparation each time.
Measurement questions
Why do other converters show a different flour weight?
Food references use different products and measuring methods. Flour packed into a cup weighs more than loosely filled flour. Our reference entry is 0.521 g/ml; a recipe with its own gram weights should take priority over a generic conversion.
Can I convert raw rice into cooked rice?
Choosing raw or cooked rice selects a reference density for that food state. It does not predict cooking yield. Water absorption depends on the rice and cooking method. Weigh your finished batch to divide cooked portions.
Do I need an ingredient for grams to ounces?
No. Ingredient selection is only needed when switching between weight and volume. The same weight conversion applies to all ingredients.
Are my measurements saved?
Conversions run in this browser tab and are not saved by the converter. Print a result if you want to keep it. See our Privacy Policy for site cookies and analytics.
Sources: NIST SP 811 conversion factors; NIST household and metric kitchen measures; FAO/INFOODS Density Database, version 2. Results display up to six decimal places for unit conversions and two for most ingredient estimates (up to six for small amounts); calculations retain the unrounded values. For cooking use; not for medicine dosing.
Cooking measurement conversion
Convert a measurement before printing.