Convert Buttermilk: cups to oz
1 cup of Buttermilk = 8.64 oz
Amount of Buttermilk
Density: 1.036 g/ml · Buttermilk
Buttermilk: cups to oz at a glance
The amounts people ask for most, worked out for Buttermilk.
How much Buttermilk weighs
Every figure below is one measured number — 245 g per US cup — scaled. That is why this table and the converter above it cannot disagree.
One cup, side by side
How much does a cup of buttermilk weigh?
245 g, per USDA FoodData Central — tied with plain yogurt as the heaviest dairy liquid on this site, just above whole milk at 244 g. King Arthur's chart puts buttermilk at 227 g, the same flat figure it gives every liquid, which is where the 18 g difference between the two references comes from.
Source for Buttermilk: USDA FoodData Central · USDA FoodData Central
Frequently asked questions
How many oz is 1 cup of Buttermilk?
1 cup of Buttermilk is 8.64 oz, because one US cup of Buttermilk weighs 245 g. That single measured figure is the whole conversion — every other unit on this page is derived from it.
How many cups is 4 oz of Buttermilk?
4 oz of Buttermilk is 0.463 cups. It is the same conversion read backwards, so this page and its reverse always agree.
Is that ounces by weight, or fluid ounces?
By weight. dishscale's ounce is the international avoirdupois ounce, 28.3495 g, so one cup of Buttermilk is 8.64 oz. A US fluid ounce is a volume and there are eight of them to the cup, so that same cup is 8 fl oz at the same time. The two readings coincide only for an ingredient that happens to weigh eight ounces to the cup.
Where does dishscale's figure for Buttermilk come from?
One US cup of Buttermilk is 245 g. The dataset records that as: “USDA FoodData Central”. That is the USDA FoodData Central. Every ingredient on the site carries the reference its weight came from, so any number here can be checked — and corrected if the source disagrees.