How many cups is 100 grams of buttermilk?
100 g of buttermilk ≈ 0.417 cups
One US cup of buttermilk weighs about 240 grams, so 100 grams works out to roughly 0.417 cups. Buttermilk weighs about the same as regular milk per cup.
100 g is a common recipe quantity, but cups measure volume, not weight. For the most reliable result, weigh buttermilk with a kitchen scale rather than scooping — see why weighing wins.
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Buttermilk conversion chart
| Grams | Cups | Tablespoons | Ounces |
|---|---|---|---|
| 10 g | 0.042 | 0.667 | 0.353 oz |
| 25 g | 0.104 | 1.67 | 0.882 oz |
| 50 g | 0.208 | 3.33 | 1.76 oz |
| 75 g | 0.313 | 5 | 2.65 oz |
| 100 g | 0.417 | 6.67 | 3.53 oz |
| 125 g | 0.521 | 8.33 | 4.41 oz |
| 150 g | 0.625 | 10 | 5.29 oz |
| 200 g | 0.833 | 13.33 | 7.05 oz |
| 250 g | 1.04 | 16.67 | 8.82 oz |
| 300 g | 1.25 | 20 | 10.58 oz |
| 400 g | 1.67 | 26.67 | 14.11 oz |
| 500 g | 2.08 | 33.33 | 17.64 oz |
Other buttermilk conversions
* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.