1 tablespoon milk = 15.25 grams
Volume is only half the story. Whole milk weighs 244 g per US cup (liquid), so we convert with a tested, ingredient-specific factor instead of a generic table.
Whole milk cups to grams
Liquid · rounded for kitchen use
| Cups | Grams | Ounces |
|---|---|---|
| ¼ cup | 61 g | 2.152 oz |
| ⅓ cup | 81.33 g | 2.869 oz |
| ½ cup | 122 g | 4.303 oz |
| ⅔ cup | 162.67 g | 5.738 oz |
| ¾ cup | 183 g | 6.455 oz |
| 1 cup | 244 g | 8.607 oz |
| 1 ½ cups | 366 g | 12.91 oz |
| 2 cups | 488 g | 17.21 oz |
| 3 cups | 732 g | 25.82 oz |
Exact factor details
- Exact factor
- 1 cup = 244 g (liquid)
- Significant digits
- 3 significant figures for table display
- Data source
- USDA FoodData Central
Why milk conversions vary
A US cup of whole milk weighs 244 g — slightly more than water because of dissolved proteins, minerals, and butterfat. In baking the difference between 240 and 244 g rarely matters, which is why most recipes round milk to 240 ml per cup. For custards and pastry cream, where ratios are tight, use the gram value.
Our factor for milk — 244 g per US cup — comes from USDA FoodData Central. Weighing beats measuring cups for repeatability: a scale gives the same result every time regardless of how the ingredient settled, and it scales recipes cleanly. Note that a US cup (236.6 ml) and a metric cup (250 ml) are not the same; recipes from outside North America may assume the metric size, which shifts every weight by about five percent.
The table below lists the amounts bakers actually reach for — quarters, thirds, and halves of a cup through three full cups — computed directly from the factor above. The converter handles any other amount instantly and uses the exact same number, so the quick reference and the live result can never drift apart.
Frequently asked questions
How much does 1 cup of milk weigh?
One US cup of whole milk weighs 244 g (liquid). This comes from USDA FoodData Central.
Why do some recipes list a different weight for milk?
Measuring conventions and brands differ, and packing changes the weight. We state our convention openly; when a recipe names its own gram value, follow that one for best results.
Should I measure milk by cups or by weight?
Weight, whenever the recipe allows. For most everyday baking, treating 1 cup of milk as 240 g is safe; switch to exact grams for custards.