One ounce of vinegar is 0.11861725 cups, so converting ounces of vinegar to cups means multiplying by 0.11861725. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Put next to water — 1 g per mL exactly — vinegar measures 1.0102 g per mL. That ratio, 101%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
A cup of vinegar is 239 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 237.8 g and 241.4 g covers the range from lightly spooned to firmly packed. That 1% spread is larger than most of the adjustments recipes fuss over, and it disappears entirely the moment the ingredient is weighed instead.
One cup of vinegar is 8.43 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 1.48% of a cup of this ingredient, so the scale is precise enough for a full cup and coarse for a spoonful. That is why recipes mix the two systems: ounces for the bulk, spoons for the small amounts.
What the number depends on: Mostly water with 4 to 8% acetic acid, so its density is barely different from water.
The formula
ounces- The amount of vinegar you are converting, in ounces
0.118617251569- Cups per ounce for vinegar, from its density of 1.0102 g/mL
cups- The equivalent quantity in cups
How it works, step by step
- Enter the quantity in ounces.
- It is multiplied by 0.118617251569, the cups-per-ounce figure for vinegar.
- The result appears in cups, with a second reading in tbsp beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
2 oz of vinegar in cups
Take 2 oz of vinegar: 2 × 0.11861725 gives 0.237235 cups. Doubling the batch takes it to 0.474469 cups, because the relationship is a straight proportion once the density is known.
4 oz of vinegar in cups
Take 4 oz of vinegar: 4 × 0.11861725 gives 0.474469 cups. Doubling the batch takes it to 0.948938 cups, because the relationship is a straight proportion once the density is known.
12 oz of vinegar in cups
12 oz of vinegar weighs out at 1.42341 cups. Divide 1.42341 by 0.11861725 and you get back to 12 oz, which is the quickest check that the factor is the right way up.
How to read your score
Frequently asked questions
How many cups are in 1 oz of vinegar?
One ounce of vinegar is 0.11861725 cups. Half that quantity is 0.0593086 cups and double it is 0.237235 cups, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of vinegar not 236 g like water?
Because weight per cup depends on what is in the cup. Vinegar has a density of 1.0102 g per mL where water has 1.00, so a cup of it weighs 239 g rather than 236.6 g. That is a difference of 2.4 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Barely. Vinegar does not compress, so a cup of it is 239 g however it is poured — within about 1%, which is inside the accuracy of a domestic scale. This is the group where measuring by volume is defensible.
Is a fluid ounce of vinegar the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of vinegar weighs 1.054 oz, so the two readings differ by 5.38%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of vinegar would weigh 252.55 g instead of 239 g — 13.5 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
A scale, if the result matters. Volume measuring carries a spread of about 1% for vinegar — roughly 2.39 g on a 239 g cup — while a domestic scale is accurate to a gram or two. For anything where the ratio of ingredients drives the outcome, bread and pastry above all, weigh it.
How much does 2 cup of vinegar weigh?
2 cup of vinegar comes to 478 g, or 16.861 ounces. This page runs that calculation in reverse — enter a weight and it returns the volume — and the cups-to-ounces page does it in the direction the question is usually asked.
Vinegar in ounces and cups
| Ounces | Cups | Unrounded |
|---|---|---|
| 1/2 oz | 0.0593086 cup | 0.05930862578 |
| 1 oz | 0.118617 cup | 0.1186172516 |
| 2 oz | 0.237235 cup | 0.2372345031 |
| 3 oz | 0.355852 cup | 0.3558517547 |
| 4 oz | 0.474469 cup | 0.4744690063 |
| 6 oz | 0.711704 cup | 0.7117035094 |
| 8 oz | 0.948938 cup | 0.9489380126 |
| 12 oz | 1.42341 cup | 1.423407019 |
| 16 oz | 1.89788 cup | 1.897876025 |
Based on 239 g per cup of vinegar. One ounce of vinegar is 0.11861725 cups.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 239 g | 8.43 oz | 236.6 mL |
| 3/4 cup | 179.2 g | 6.32 oz | 177.4 mL |
| 2/3 cup | 159.3 g | 5.62 oz | 157.7 mL |
| 1/2 cup | 119.5 g | 4.22 oz | 118.3 mL |
| 1/3 cup | 79.67 g | 2.81 oz | 78.86 mL |
| 1/4 cup | 59.75 g | 2.11 oz | 59.15 mL |
| 1 tbsp | 14.94 g | 0.527 oz | 14.79 mL |
| 1 tsp | 4.979 g | 0.176 oz | 4.929 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Cream cheese | 227 g | 8.007 oz | 0.9595 |
| Water | 236 g | 8.325 oz | 0.9975 |
| Heavy cream | 238 g | 8.395 oz | 1.006 |
| Vinegar (this page) | 239 g | 8.43 oz | 1.01 |
| Sour cream | 240 g | 8.466 oz | 1.014 |
| Tahini | 240 g | 8.466 oz | 1.014 |
| Half-and-half | 242 g | 8.536 oz | 1.023 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.