Buttermilk Cups to Ounces
Convert any amount of buttermilk between cups and ounces. 1 cup of buttermilk equals 8.64 oz. Use the calculator for custom amounts, or choose an amount below.
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Popular Recipe Amounts
Common buttermilk measurements found in recipes.
Other Units for Buttermilk
Convert buttermilk from cups to other units. Each link has its own calculator and conversion amounts.
Similar Ingredients
Measuring Tip
Liquid densities vary: oils weigh less per cup than water, while syrups and honey weigh more. This is why ingredient-specific conversions matter even for liquids.
Understanding the Units
What is a Cup?
In US cooking, a cup measures volume, not weight. One standard US cup holds 236.588 ml of liquid. Because different ingredients have different densities, a cup of one ingredient can weigh very differently from a cup of another.
What is an Ounce?
Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.
Frequently Asked Questions
For buttermilk, 1 cup equals 8.64 oz. For other amounts, select an amount below or use the calculator for a custom quantity.
The most accurate way is to weigh buttermilk on a kitchen scale. If you are measuring by volume, use a liquid measuring cup on a flat surface and read the level at eye height. Liquids settle naturally, so volume measurements are already quite consistent.
Very close. Pure liquid densities are consistent across brands, so the cups to ounces conversion for buttermilk typically varies by less than 2-3%.
For liquids like buttermilk, volume measurements are already quite accurate since liquids settle to a consistent level. A kitchen scale adds precision but the difference is typically small for liquid ingredients.