Water: Cups to Grams
Water has a density of 1 g/mL, so converting between volume (cups, tablespoons) and weight (grams, ounces) needs this specific figure rather than a generic one. One US cup of water weighs about 236.5882365 g.
Water volume to weight table
Grams and ounces for common volume measurements, calculated from a density of 1 g/mL.
| Volume | Weight (g) | Weight (oz) |
|---|---|---|
| Teaspoon | 4.928921594 | 0.1738625928 |
| Tablespoon | 14.78676478 | 0.5215877783 |
| Fluid Ounce | 29.57352956 | 1.043175557 |
| Cup (US) | 236.5882365 | 8.345404452 |
| Pint (US) | 473.176473 | 16.6908089 |
| Quart (US) | 946.352946 | 33.38161781 |
| Gallon (US) | 3,785.411784 | 133.5264712 |
| Milliliter | 1 | 0.03527396195 |
| Liter | 1,000 | 35.27396195 |
| Cubic Centimeter | 1 | 0.03527396195 |
| Cubic Inch | 16.387064 | 0.578036672 |
| Cup (Metric) | 250 | 8.818490487 |
How to measure it accurately
Water is the reference point for every other ingredient here: 1 millilitre weighs 1 gram, so 1 litre is 1 kilogram.
Use the full cooking converter
For any other volume or weight unit, or to convert weight back to volume, use the Cooking Converter and select Water from the ingredient list.
Frequently asked questions
How many grams in a cup of water?
1 US cup of water weighs about 236.5882365 grams (8.345404452 oz), using a density of 1 g/mL.
How many grams in a tablespoon of water?
1 tablespoon of water weighs about 14.78676478 grams.
How many grams in a teaspoon of water?
1 teaspoon of water weighs about 4.928921594 grams.
Why does water have a different gram weight than other ingredients?
Because grams measure mass and cups measure volume, the conversion depends on density. Water has a density of 1 g/mL, the same as water.
Does how I measure water matter?
Water is the reference point for every other ingredient here: 1 millilitre weighs 1 gram, so 1 litre is 1 kilogram.
Ingredients of similar density
Densities are typical values; how an ingredient is packed can change actual weight. See our disclaimer.