Buttermilk: Cups to Grams
One US cup of buttermilk is about 227 g (fats & liquids); a tablespoon is about 14.2 g and 100 g is about 0.441 cups. Convert any amount below.
Reference weight: King Arthur Baking. Source checked 14 August 2026; cup-to-weight results remain approximate because packing and product density vary.
Weight uses buttermilk's real density. Volume↔volume and weight↔weight are exact for any ingredient; cup→gram uses a cited reference weight (packing and cup size vary by ±5%).
Buttermilk — volume to weight
Common cup and spoon amounts of buttermilk, converted to grams, ounces and millilitres.
| Amount | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 tsp | 4.73 g | 0.167 oz | 4.93 ml |
| 1 tbsp | 14.2 g | 0.5 oz | 14.8 ml |
| ¼ cup | 56.8 g | 2 oz | 59.1 ml |
| ⅓ cup | 75.7 g | 2.67 oz | 78.9 ml |
| ½ cup | 114 g | 4 oz | 118 ml |
| ⅔ cup | 151 g | 5.34 oz | 158 ml |
| ¾ cup | 170 g | 6.01 oz | 177 ml |
| 1 cup | 227 g | 8.01 oz | 237 ml |
| 2 cups | 454 g | 16 oz | 473 ml |
Buttermilk — weight to cups
Weigh buttermilk on a scale? Here is what each weight is in cups and tablespoons.
| Grams | Cups | Tablespoons | Ounces |
|---|---|---|---|
| 10 g | 0.044 | 0.705 | 0.353 oz |
| 25 g | 0.11 | 1.76 | 0.882 oz |
| 50 g | 0.22 | 3.52 | 1.76 oz |
| 100 g | 0.441 | 7.05 | 3.53 oz |
| 150 g | 0.661 | 10.6 | 5.29 oz |
| 200 g | 0.881 | 14.1 | 7.05 oz |
| 250 g | 1.1 | 17.6 | 8.82 oz |
| 500 g | 2.2 | 35.2 | 17.6 oz |
| 1000 g | 4.41 | 70.5 | 35.3 oz |
Why weigh buttermilk instead of measuring cups?
A cup measures volume, but recipes really care about how much buttermilk you add by weight. One US cup of buttermilk is taken as 227 g here, cited from King Arthur Baking, and every conversion on this page routes through that figure. Volume-to-volume and weight-to-weight steps are exact, but the cup→gram crossing depends on product form and how the buttermilk is packed, so a kitchen scale is the reliable way to hit the same result every time.
FAQ
How many grams are in a cup of buttermilk?
One US cup of buttermilk weighs about 227 g (source: King Arthur Baking). Because a cup measures volume, the exact weight shifts a little with how you fill it, so treat this as ±5% and weigh for precision.
How many grams are in a tablespoon of buttermilk?
One tablespoon of buttermilk is about 14.2 g, and one teaspoon about 4.73 g, since a US cup is exactly 16 tablespoons (48 teaspoons).
How much is 100 g of buttermilk in cups?
100 g of buttermilk is about 0.441 cups. Use the converter above for any other weight — it works in both directions.
Is the cup-to-gram figure for buttermilk exact?
The cup weight is a cited reference (King Arthur Baking); volume↔volume and weight↔weight conversions on this page are exact, but the cup→gram step depends on packing, humidity and brand, so it is best treated as ±5%. A kitchen scale removes the guesswork.
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