Please note that, fluid ounce is a volume unit and ounce is a mass/weight unit in the imperial and US customary measurement systems. The cup capacity can only be converted into fluid ounces.
How many fluid ounces are there in a cup?
There are 8 fluid ounces in a cup in US. There are 10 imperial fluid ounces in an imperial cup and 8.8 imperial fluid ounces in a metric cup in UK.
Please note that, UK, Australia, New Zealand and a few other commonwealth countries use the metric cups (250 mL) today. But if you need the cups to ounces conversion from the old recipes (pre-1970s), then you may still need the use the capacities from the imperial cups to find out how many ounces in "x" cups in the recipes from those countries.
Canada uses metric cups after mid-1970s but before the metric system is adopted the traditional Canadian cup (8 imperial fluid ounces) was used. Because of Canada's strong ties with US, it is necessary to know the differences of cup capacities and convert between US cups (236.6 mL), traditional Canadian cups (227.3 mL) and the metric cups (250 mL).
If you would like to compare the cup capacities in milliliters (mL) please check cups to mL converter page.
How to convert from cups to fluid ounces?
To convert from cups to fluid ounces, multiply the number of cups "x" by 8 for the US cup, multiply by 8.8 for the metric cup and multiply by 10 for the traditional imperial cup (UK).
For example, to find out how many ounces there are in one and a half US cup, multiply 1.5 by 8, that makes 12 ounces in 1.5 US cups.
If you would like to convert from ounces to cups please check ounces to cups page to find out how many cups in "x" ounces.
Please note that, if you are converting cups to fl. ounces from cooking recipes, it might be important to know where this recipe is originated from. For example, for a UK recipe the cup capacity is larger (250 mL) and if you are in US (236.5 mL) then you may want to convert between these two cups using this cooking measurement units conversion tool for the accurate measurement to find out how many ounces in "x" cups in that country and the measurement system.
If you have to convert between the cups, here is a quick reference list:
1 Imperial Cup = 1.2 US Cup
1 Imperial Cup = 1.13 Metric Cup
1 Imperial Cup = 1.25 Canadian Cup
1 US Cup = 0.83 Imperial Cup
1 US Cup = 0.94 Metric Cup
1 US Cup = 1.04 Canadian Cup
1 Metric Cup = 0.88 Imperial Cup
1 Metric Cup = 1.05 US Cup
1 Metric Cup = 1.1 Canadian Cup
1 Canadian Cup = 0.8 Imperial Cup
1 Canadian Cup = 0.96 US Cup
1 Canadian Cup = 0.9 Metric Cup
What is a cup?
Cup is a US customary and metric system volume unit (imperial cups are no longer in use today except the old recipes). 1 US cup equals to 236.5 mL. UK, Canada, Australia and New Zealand now use the metric cups (250 mL). The abbreviation is "c".
1 Cup = 1/16 Gallon
1 Cup = 1/4 Quart
1 Cup = 1/2 Pint
1 Cup = 16 Tablespoons
1 Cup = 48 Teaspoons
There are 16 cups in a gallon in US customary and the imperial system. If you would like to convert cups and gallons please check gallons to cups page to find out how many cups in "x" gallons.
There are 4 cups in a quart in US customary and the imperial system. If you would like to convert cups and quarts please check quarts to cups page to find out how many cups in "x" quarts.
What is a fluid ounce (fl oz)?
Fluid ounce is an imperial and US customary measurement system volume unit. 1 US fluid ounce equals to 29.5735 mL and 1 imperial (UK) fluid ounce equals to 28.4131 mL. The abbreviation is "fl oz".
There are 128 fluid ounces in a US gallon and 160 imperial fluid ounces in an imperial gallon. If you would like to convert fluid ounces and gallons please check gallons to ounces page to find out how many ounces in "x" gallons.
The list for your reference:
1 US Cup = 8 US Fluid Ounces
1 Imperial Cup = 10 Imperial Fluid Ounces
1 Canadian Cup = 8 Imperial Fluid Ounces
1 Metric Cup = 8.8 Imperial Fluid Ounces
1 Metric Cup = 8.45 US Fluid Ounces
For US Cups:
1/8 US cup = 1 fl oz
1/4 US cup = 2 fl oz
1/2 US cup = 4 fl oz
1 US cup = 8 fl oz
3/2 US cup = 12 fl oz
2 US cup = 16 fl oz
5/2 US cup = 20 fl oz
For Metric Cups to Imperial Fl. Ounces:
1/8 metric cup = 1.1 imperial fl oz
1/4 metric cup = 2.2 imperial fl oz
1/2 metric cup = 4.4 imperial fl oz
1 metric cup = 8.8 imperial fl oz
3/2 metric cup = 13.2 imperial fl oz
2 metric cup = 17.6 imperial fl oz
5/2 metric cup = 22 imperial fl oz
For Imperial Cups:
1/8 imperial cup = 1.25 imperial fl oz
1/4 imperial cup = 2.5 imperial fl oz
1/2 imperial cup = 5 imperial fl oz
1 imperial cup = 10 imperial fl oz
3/2 imperial cup = 15 imperial fl oz
2 imperial cup = 20 imperial fl oz
5/2 imperial cup = 25 imperial fl oz
To find out how many ounces there are in "x" cups for all conversion values please check the table below. If the cups to fl. ounces conversion value that you are looking for is not listed in the conversion table, you may create your own custom table.