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Cups to Fluid Ounces
1 cup = 8 fl oz. Convert cups (cup) to fluid ounces (fl oz) with the converter, the formula and the tables below.
Convert cups to fluid ounces
How to convert cups to fluid ounces
To convert cups to fluid ounces, multiply the number of cups by 8.
fl oz = cup × 8
For example, 5 cup = 40 fl oz.
- Cup: US customary cup.
- Fluid ounce: US.
Cups to fluid ounces
| Cups (cup) | Fluid ounces (fl oz) |
|---|---|
| 1 cup | 8 fl oz |
| 2 cup | 16 fl oz |
| 3 cup | 24 fl oz |
| 4 cup | 32 fl oz |
| 5 cup | 40 fl oz |
| 10 cup | 80 fl oz |
| 20 cup | 160 fl oz |
| 25 cup | 200 fl oz |
| 50 cup | 400 fl oz |
| 100 cup | 800 fl oz |
| 250 cup | 2,000 fl oz |
| 500 cup | 4,000 fl oz |
| 1,000 cup | 8,000 fl oz |
Fluid ounces to cups
| Fluid ounces (fl oz) | Cups (cup) |
|---|---|
| 1 fl oz | 0.125 cup |
| 2 fl oz | 0.25 cup |
| 3 fl oz | 0.375 cup |
| 4 fl oz | 0.5 cup |
| 5 fl oz | 0.625 cup |
| 10 fl oz | 1.25 cup |
| 20 fl oz | 2.5 cup |
| 25 fl oz | 3.125 cup |
| 50 fl oz | 6.25 cup |
| 100 fl oz | 12.5 cup |
| 250 fl oz | 31.25 cup |
| 500 fl oz | 62.5 cup |
| 1,000 fl oz | 125 cup |
Related conversions
- Fluid Ounces to CupsReverse
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- Gallons to Liters
- Milliliters to Fluid Ounces
- Fluid Ounces to Milliliters
- Cups to Milliliters
- Milliliters to Cups
- Tablespoons to Milliliters
- Teaspoons to Milliliters
- Tablespoons to Teaspoons
- UK Gallons to Liters
- Liters to UK Gallons
- Cubic Feet to Cubic Meters
- All 448 units
Questions
How many fluid ounces are in one cup?
There are 8 fluid ounces in one cup, and 0.125 cups in one fluid ounce.
How do I convert cups to fluid ounces?
To convert cups to fluid ounces, multiply the number of cups by 8. For example, 5 cup = 40 fl oz.
What can I type in the conversion box?
A number, a unit and the unit you want, like “5 ft 10 in to cm”, “72 °F in C”, “3 cups to ml” or “60 mph to km/h”. It understands symbols, full names, plurals and British spellings, adds mixed units such as feet and inches together, and accepts fractions like 1 1/2 or ½. Leave out the second unit to see the value in every common unit.
Which units does the converter know?
448 units in 36 categories: everyday measures of length, weight, volume, temperature, area, speed and time, technical ones like pressure, energy, torque, viscosity and radiation, and regional units such as the Japanese tsubo, Chinese jin, Indian tola and Russian verst.
How accurate are the conversions?
They use exact definitions wherever one exists (an inch is exactly 2.54 cm, a pound exactly 0.45359237 kg) and show 10 significant figures. A few units have varied over time or by region; those are marked, and the value in common modern use is the one used.
Are US and UK gallons the same?
No. A US gallon is 3.785 litres and a UK (imperial) gallon is 4.546 litres, and pints, quarts and fluid ounces differ in the same way. Both are listed separately, and the plain names mean the US ones.
Is a kilobyte 1000 or 1024 bytes?
A kilobyte (kB) is 1000 bytes, as with every other metric prefix. 1024 bytes is a kibibyte (KiB), and the same goes for MB and MiB, GB and GiB. Disk makers use the first; many operating systems show the second, which is why a 1 TB drive shows up as about 931 GB.
Why can't I convert cups to grams, or kilograms to litres?
Volume and weight measure different things, so the answer depends on what's being measured: a cup of flour weighs far less than a cup of honey. The converter only converts between units of the same kind, and tells you when two units can't be converted.
Part of Unit Converter
Convert over 400 units of length, weight, temperature, volume, speed, pressure, energy and more. Or just type a conversion like “5 ft 10 in to cm”.
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