Cups of orange juice to ounces runs on one number, 8.7479426 ounces per cup. It is a measured property of this ingredient rather than a defined conversion, which is why a generic volume-to-weight tool cannot give you it.
The density behind that figure is 1.0482 g per mL, against 1.00 for water. A cup of water weighs 236.6 g and a cup of orange juice weighs 248 g, so this ingredient is 104.8% as heavy as the same volume of water — the single fact the whole page rests on.
A cup of orange juice is 248 g when it is measured the standard way, but how it gets into the cup changes the answer: between about 246.8 g and 250.5 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 orange juice is 8.748 oz. US kitchen scales usually step in eighths of an ounce, which is 3.54 g — around 1.43% 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.
How the figure is arrived at: The dissolved sugar puts it just above water, which is why a hydrometer can read juice strength at all.
The formula
cups- The amount of orange juice you are converting, in cups
8.7479425635- Ounces per cup for orange juice, from its density of 1.0482 g/mL
ounces- The equivalent quantity in ounces
How it works, step by step
- Enter the quantity in cups.
- It is multiplied by 8.7479425635, the ounces-per-cup figure for orange juice.
- The result appears in ounces, with a second reading in g beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
1/3 cup of orange juice in ounces
1/3 cup of orange juice weighs out at 2.91598 ounces. Divide 2.91598 by 8.7479426 and you get back to 1/3 cup, which is the quickest check that the factor is the right way up.
3/4 cup of orange juice in ounces
Take 3/4 cup of orange juice: 0.75 × 8.7479426 gives 6.56096 ounces. Doubling the batch takes it to 13.1219 ounces, because the relationship is a straight proportion once the density is known.
3 cup of orange juice in ounces
3 cup of orange juice weighs out at 26.2438 ounces. Divide 26.2438 by 8.7479426 and you get back to 3 cup, which is the quickest check that the factor is the right way up.
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Frequently asked questions
How many ounces are in 1 cup of orange juice?
One cup of orange juice is 8.7479426 ounces. Half that quantity is 4.37397 ounces and double it is 17.4959 ounces, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of orange juice not 236 g like water?
Because weight per cup depends on what is in the cup. Orange juice has a density of 1.0482 g per mL where water has 1.00, so a cup of it weighs 248 g rather than 236.6 g. That is a difference of 11.4 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. Orange juice does not compress, so a cup of it is 248 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 orange juice 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 orange juice weighs 1.093 oz, so the two readings differ by 9.35%. 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 orange juice would weigh 262.06 g instead of 248 g — 14.1 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 orange juice — roughly 2.48 g on a 248 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 many cups of orange juice is 16 oz?
16 oz of orange juice is 1.829 cups — 0.114313 cups to one ounce, so 16 × 0.114313 = 1.829. Going that way is a division by 8.74794, or a multiplication by 0.114313 if you prefer.
Orange juice in cups and ounces
| Cups | Ounces | Unrounded |
|---|---|---|
| 1/8 cup | 1.09349 oz | 1.09349282 |
| 1/4 cup | 2.18699 oz | 2.186985641 |
| 1/3 cup | 2.91598 oz | 2.915980854 |
| 1/2 cup | 4.37397 oz | 4.373971282 |
| 2/3 cup | 5.83196 oz | 5.831961709 |
| 3/4 cup | 6.56096 oz | 6.560956923 |
| 1 cup | 8.74794 oz | 8.747942563 |
| 1 1/2 cup | 13.1219 oz | 13.12191385 |
| 2 cup | 17.4959 oz | 17.49588513 |
| 3 cup | 26.2438 oz | 26.24382769 |
| 4 cup | 34.9918 oz | 34.99177025 |
Based on 248 g per cup of orange juice. One cup of orange juice is 8.7479426 ounces.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 248 g | 8.75 oz | 236.6 mL |
| 3/4 cup | 186 g | 6.56 oz | 177.4 mL |
| 2/3 cup | 165.3 g | 5.83 oz | 157.7 mL |
| 1/2 cup | 124 g | 4.37 oz | 118.3 mL |
| 1/3 cup | 82.67 g | 2.92 oz | 78.86 mL |
| 1/4 cup | 62 g | 2.19 oz | 59.15 mL |
| 1 tbsp | 15.5 g | 0.547 oz | 14.79 mL |
| 1 tsp | 5.167 g | 0.182 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) |
|---|---|---|---|
| Buttermilk | 245 g | 8.642 oz | 1.036 |
| Plain yogurt | 245 g | 8.642 oz | 1.036 |
| Tomato sauce | 245 g | 8.642 oz | 1.036 |
| Orange juice (this page) | 248 g | 8.748 oz | 1.048 |
| Evaporated milk | 252 g | 8.889 oz | 1.065 |
| Peanut butter | 258 g | 9.101 oz | 1.091 |
| Sweetened condensed milk | 306 g | 10.79 oz | 1.293 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.