20 Fluid Ounces to Cups
20 fl oz = 2.5 cups
20 US fluid ounces equals 2.5 US cups.
How to convert 20 fl oz to cups
Use the formula cups = fl oz ÷ 8:
cups = 20 ÷ 8cups = 2.5
So 20 fl oz = 2.5 cups.
Rounded values and quick estimate
- Rounded to a whole number: 3 cups
- Rounded to one decimal place: 2.5 cups
- Conversion factor: 1 US fluid ounce = 0.125 US cups
This conversion is exact, so there is no need to estimate: just divide by 8.
20 Fluid Ounces in other units
- US cups
- 2.5 cups
- Milliliters
- 591.47 ml
- Liters
- 0.5915 L
- Teaspoons
- 120 tsp
- Tablespoons
- 40 tbsp
- US pints
- 1.25 pt
- US quarts
- 0.625 qt
- US gallons
- 0.1563 gal
- Cubic centimeters
- 591.47 cc
- Cubic inches
- 36.09 cu in
- Cubic feet
- 0.0209 cu ft
- Drops
- 11829.41 drops
- Oil barrels
- 0.00372 bbl
- UK gallons
- 0.1301 UK gal
- Cubic meters
- 0.000591 m³
- Cubic yards
- 0.000774 cu yd
20 fl oz and nearby values
About us fluid ounces and us cups
A US fluid ounce is 1/128 of a US gallon, about 29.57 ml. (A UK imperial fluid ounce is slightly smaller, 28.41 ml.)
A US customary cup is 8 US fluid ounces, about 236.6 ml. Nutrition labels use a rounded 240 ml cup; metric cups are 250 ml.
Related conversions
Frequently asked questions
What is 20 Fluid Ounces in Cups?
20 US fluid ounces is 2.5 US cups (20 fl oz = 2.5 cups).
How do you convert 20 fl oz to cups?
Apply cups = fl oz ÷ 8: cups = 20 ÷ 8, cups = 2.5.
How many US fluid ounces is 2.5 cups?
2.5 cups is about 20 US fluid ounces.