How Much Is 128 Fluid Ounces of Buttermilk in Ounces?
128 fluid ounces of buttermilk equals 138.27 oz. Buttermilk has a density of 245g per cup (30.63g per fluid ounce), which means it's relatively light compared to other common cooking ingredients. For comparison, 128 fluid ounces of honey would be 191.89 oz.
Formula and Step-by-Step
- Start with 128 fluid ounces of buttermilk
- 1 fluid ounce of buttermilk = 30.63g
- 128 × 30.63 = 3,920g
- Convert grams to ounces: 3,920 ÷ 28.3495 = 138.27 oz
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 fluid ounces measurements. Your amount (128 fluid ounces) is highlighted.
For reference, 128 fluid ounces of buttermilk (3,920g) is close in weight to a gallon of milk (3,900g).
Other Amounts of Buttermilk
| Fluid Ounces | US Ounces | UK Fluid Ounce |
|---|---|---|
| 1 fluid ounce | 1.08 oz | 1.04 oz |
| 2 fluid ounces | 2.16 oz | 2.08 oz |
| 3 fluid ounces | 3.24 oz | 3.11 oz |
| 4 fluid ounces | 4.32 oz | 4.15 oz |
| 5 fluid ounces | 5.40 oz | 5.19 oz |
| 6 fluid ounces | 6.48 oz | 6.23 oz |
| 8 fluid ounces | 8.64 oz | 8.30 oz |
| 10 fluid ounces | 10.80 oz | 10.38 oz |
| 12 fluid ounces | 12.96 oz | 12.45 oz |
| 16 fluid ounces | 17.28 oz | 16.61 oz |
| 128 fluid ounces | 138.27 oz | 132.85 oz |
Understanding the Units
What is a Fluid Ounce?
There are 8 fluid ounces in a US cup and 128 fluid ounces in a US gallon. The UK fluid ounce is slightly smaller (28.413 ml vs 29.574 ml), so UK and US recipes using fluid ounces will differ slightly.
What is an Ounce?
Ounces are commonly used in US recipes for cheese, meat, chocolate, and other ingredients sold by weight. Many kitchen scales offer both gram and ounce readings.