Convert Cups to Grams: Buttermilk
Convert cups of buttermilk to grams with this complete reference table. 1 cup of buttermilk = 245g (USDA FoodData Central, spooned-and-leveled method). Use the table below for fractions from 1/8 cup up to 4 cups. For precision baking, weight measurements in grams are always more reliable than volume measurements in cups, because buttermilk density can vary by measuring technique.
Buttermilk Cups to Grams Table
| Cups | Grams |
|---|---|
| 1/8 cup | 30.6g |
| 1/4 cup | 61.3g |
| 1/3 cup | 81.7g |
| 1/2 cup | 122.5g |
| 2/3 cup | 163.3g |
| 3/4 cup | 183.8g |
| 1 cup | 245g |
| 1 1/4 cups | 306.3g |
| 1 1/2 cups | 367.5g |
| 2 cups | 490g |
| 3 cups | 735g |
| 4 cups | 980g |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Buttermilk is similar in density to skim milk. 1 cup = 245g. The acidity (pH 4.5) activates baking soda and tenderizes gluten. No buttermilk? Mix 1 cup milk + 1 tablespoon white vinegar/lemon juice, wait 5 minutes.
About Buttermilk Density
The density of buttermilk determines how much it weighs per unit of volume. At 1.021g/ml, 1 US cup (240ml) of buttermilk weighs 245g under USDA standard conditions.
Volume measurements can vary by ±10–20% depending on technique (sifted vs. spooned vs. scooped). For consistent baking results, use a kitchen scale with gram measurements whenever possible. The USDA standard (spooned-and-leveled) is the reference point for all values on this page.
Frequently Asked Questions
How many grams is 1 cup of buttermilk?
1 cup of buttermilk weighs 245 grams (USDA FoodData Central, spooned-and-leveled method, 1 US cup = 240ml).
How many grams is 1/2 cup of buttermilk?
1/2 cup of buttermilk weighs 123 grams.
How many grams is 1/4 cup of buttermilk?
1/4 cup of buttermilk weighs 61 grams.
Does measuring technique affect the weight of buttermilk?
Yes. Sifted buttermilk can weigh up to 20% less than packed or scooped. The USDA standard (spooned-and-leveled) of 245g/cup is the most reliable baseline.