How Much Is 5.09 Ounces of Buttermilk in Milliliters?
5.09 ounces of buttermilk equals 139.34 ml. Buttermilk has a density of 245g per cup. A lighter ingredient like flour (125g/cup) would fill more volume at the same weight, which is why ingredient-specific conversions matter.
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
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.
Buttermilk at Different Amounts
How buttermilk scales across common ounces measurements. Your amount (5.09 ounces) is highlighted.
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.
What is a Milliliter?
Most kitchen measuring cups outside the US are marked in milliliters. A standard metric cup is 250 ml. When converting American recipes, 1 US cup = 236.588 ml.
About 139.34 ml, based on buttermilk having a density of 245g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 245 (grams per cup), then multiply by 236.588 to get milliliters. For 5.09 ounces: 5.09 × 28.3495 = 144.30g, then 144.30 ÷ 245 = 0.59 cups × 236.588 = 139.34 ml.
For the most accurate results, weigh buttermilk on a kitchen scale. If measuring by volume, use a liquid measuring cup on a flat surface and read the level at eye height.
Temperature has a minimal effect on most cooking liquids. The density of buttermilk changes slightly with temperature, but the difference is usually less than 1-2% between refrigerator and room temperature. This conversion assumes room temperature.
Reverse the conversion: 139.34 ml ÷ 236.588 = 0.588976 cups, then 0.588976 × 245g/cup = 144.30g, then 144.30g ÷ 28.3495 = 5.09 ounces. Or use the Milliliters to Ounces converter.
