Fluid ounces and cups are both units used to measure volume in the imperial system.
Because this system doesn’t use a base-ten to calculate, it can be a little challenging to figure out how many ounces are in a cup.
Fortunately, the math isn’t too difficult.
There are 8 ounces in 1 cup. This means that, in order to determine how many ounces are in a particular number of cups, you’ll need to multiply the number of cups by eight.
For example, if you want to know how many ounces are in 5 cups, multiply 5 by 8.
The answer, which is 40, tells you that there are 40 ounces in 5 cups.
If you want to reverse the equation and find out how many cups you can make from a certain number of ounces, simply divide the number of ounces by 8.
For example, if you have 56 ounces, you would divide 56 by 8.
The answer is 7, which tells you that you can make 7 full cups from 56 ounces.
Since the math can sometimes be a bit tricky, you can also always use a conversion chart or online conversion calculator to help you quickly figure out how many ounces are in a certain number of cups.
Cups to ounces conversion table
| Cups | Ounces | Cups | Ounces |
|---|---|---|---|
| 1 | 8 | 11 | 88 |
| 2 | 16 | 12 | 96 |
| 3 | 24 | 13 | 104 |
| 4 | 32 | 14 | 112 |
| 5 | 40 | 15 | 120 |
| 6 | 48 | 16 | 128 |
| 7 | 56 | 17 | 136 |
| 8 | 64 | 18 | 144 |
| 9 | 72 | 19 | 152 |
| 10 | 80 | 20 | 160 |
You can also convert 1 cup into other units of measurements.
1 Cup = 0.063 US gallons
1 Cup = 0.253 US quarts
1 Cup = 0.24 Liters
Cups and ounces units of measurement
As the name suggests, a cup unit of measurement is based on a drinking cup.
However, because drinking cups can vary so greatly in size and volume, the measurement was eventually standardized to equal 8 ounces or 16 US tablespoons.
This measurement is also equal to half of a pint or 1/4 of a quart.
The cup unit of measurement is mostly used in the United States where the imperial system of measurement is popular.
However, cups are sometimes used around the world as well.
For example, a United States cup unit of measurement is equal to about 12 Australian tablespoons.
The metric cup is popular around the world and is just less than 1 tablespoon larger in volume than the American standard cup.
A metric cup is equal to 250 milliliters. In other parts of the world, such as Japan and South America, smaller ‘cup’ units of measurement are used to measure things such as tea or coffee.
Ounces can be used to measure either volume or mass.
Fluid ounces are used for volume, while standard ounces, which are used to measure mass, can take up more or less space than a fluid ounce depending on the density of the substance they’re measuring.