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How Much Is 8.99 Ounces of Buttermilk in Cups?

8.99 ounces of buttermilk equals 1.04 cups. 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.

8.99 ounces of buttermilk
=
1.04cups
Result using all cup standards info
1.04 cups (US) 0.98 cups (Metric Cup) 0.87 cups (Imperial Cup)
1.04

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 245g/cup = cups
  1. Start with 8.99 ounces of buttermilk
  2. Convert ounces to grams: 8.99 × 28.35 = 254.86g
  3. 1 cup of buttermilk = 245g
  4. 254.86g ÷ 245g/cup = 1.04 cups

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

For liquids, place your measuring cup on a flat surface and read at eye level. The bottom of the meniscus (the curve at the surface) should align with the measurement line.

Buttermilk at Different Amounts

How buttermilk scales across common ounces measurements. Your amount (8.99 ounces) is highlighted.

4 oz0.46 cups5 oz0.58 cups6 oz0.69 cups8 oz0.93 cups8.99 oz1.04 cups10 oz1.16 cups12 oz1.39 cups16 oz1.85 cups

Other Amounts of Buttermilk

Ounces US Cups Metric Cup Imperial Cup
1 ounce 0.12 cups 0.11 cups 0.10 cups
2 ounces 0.23 cups 0.22 cups 0.19 cups
3 ounces 0.35 cups 0.33 cups 0.29 cups
4 ounces 0.46 cups 0.44 cups 0.39 cups
5 ounces 0.58 cups 0.55 cups 0.48 cups
6 ounces 0.69 cups 0.66 cups 0.58 cups
8 ounces 0.93 cups 0.88 cups 0.77 cups
8.99 ounces 1.04 cups 0.98 cups 0.87 cups
10 ounces 1.16 cups 1.10 cups 0.96 cups
12 ounces 1.39 cups 1.31 cups 1.16 cups
16 ounces 1.85 cups 1.75 cups 1.54 cups

Understanding the Units

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.

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.

Frequently Asked Questions

About 1.04 cups, 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). For 8.99 ounces: 8.99 × 28.3495 = 254.86g, then 254.86 ÷ 245 = 1.04 cups.
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: 1.04 cups × 245g/cup = 254.86g, then 254.86g ÷ 28.3495 = 8.99 ounces. Or use the Cups to Ounces converter.