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How Much Is 138.64 Grams of Buttermilk in Milliliters?

138.64 grams of buttermilk equals 133.88 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.

138.64 grams of buttermilk
=
133.88ml
Try: 5 grams = 4.83 ml 10 grams = 9.66 ml 25 grams = 24.14 ml 50 grams = 48.28 ml
Compare: 138.64 grams coconut milk = 145.14 ml 138.64 grams coconut oil = 150.46 ml 138.64 grams condensed milk = 107.19 ml
Convert a different ingredient
138.64 grams of buttermilk is also
0.57 cup (cups) 9.05 tbsp (tablespoons) 27.16 tsp (teaspoons) 4.53 fl oz (fluid ounces) 0.28 pt (pints) 0.14 qt (quarts) 0.13 L (liters) 0 gal (gallons)
133.88

Formula and Step-by-Step

grams ÷ 245g/cup × 236.588 = milliliters
  1. Start with 138.64 grams of buttermilk
  2. 1 cup of buttermilk = 245g
  3. 138.64g ÷ 245g/cup = 0.57 cups × 236.588 = 133.88 milliliters

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 grams measurements. Your amount (138.64 grams) is highlighted.

25 g24.14 ml50 g48.28 ml75 g72.42 ml100 g96.57 ml138.64 g133.88 ml150 g144.85 ml200 g193.13 ml250 g241.42 ml

Other Amounts of Buttermilk

Grams Milliliters
5 grams 4.83 ml
10 grams 9.66 ml
25 grams 24.14 ml
50 grams 48.28 ml
75 grams 72.42 ml
100 grams 96.57 ml
138.64 grams 133.88 ml
150 grams 144.85 ml
200 grams 193.13 ml
250 grams 241.42 ml
500 grams 482.83 ml

Understanding the Units

What is a Gram?

Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.

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.

Frequently Asked Questions

About 133.88 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.
Divide the grams by 245 (grams per cup) to get cups, then multiply by 236.588 to get milliliters. For 138.64 grams: 138.64 ÷ 245 = 0.57 cups × 236.588 = 133.88 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: 133.88 ml ÷ 236.588 = 0.565878 cups, then 0.565878 × 245g/cup = 138.64g. Or use the Milliliters to Grams converter.
person Written by Sean Day verified Reviewed by CookingConvert update Last updated Apr 3, 2026