40 Fluid Ounces to Cups
40 fl oz = 5 cups
40 US fluid ounces equals 5 US cups.
How to convert 40 fl oz to cups
Use the formula cups = fl oz ÷ 8:
cups = 40 ÷ 8cups = 5
So 40 fl oz = 5 cups.
Rounded values and quick estimate
- Rounded to a whole number: 5 cups
- Rounded to one decimal place: 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.
40 Fluid Ounces in other units
- US cups
- 5 cups
- Milliliters
- 1182.94 ml
- Liters
- 1.18 L
- Teaspoons
- 240 tsp
- Tablespoons
- 80 tbsp
- US pints
- 2.5 pt
- US quarts
- 1.25 qt
- US gallons
- 0.3125 gal
- Cubic centimeters
- 1182.94 cc
- Cubic inches
- 72.19 cu in
- Cubic feet
- 0.0418 cu ft
- Drops
- 23658.82 drops
- Oil barrels
- 0.00744 bbl
- UK gallons
- 0.2602 UK gal
- Cubic meters
- 0.001183 m³
- Cubic yards
- 0.001547 cu yd
40 fl oz and nearby values
| US fluid ounces | US cups |
|---|---|
| 36 fl oz | 4.5 cups |
| 37 fl oz | 4.63 cups |
| 38 fl oz | 4.75 cups |
| 39 fl oz | 4.88 cups |
| 40 fl oz | 5 cups |
| 41 fl oz | 5.13 cups |
| 42 fl oz | 5.25 cups |
| 43 fl oz | 5.38 cups |
| 44 fl oz | 5.5 cups |
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 40 Fluid Ounces in Cups?
40 US fluid ounces is 5 US cups (40 fl oz = 5 cups).
How do you convert 40 fl oz to cups?
Apply cups = fl oz ÷ 8: cups = 40 ÷ 8, cups = 5.
How many US fluid ounces is 5 cups?
5 cups is about 40 US fluid ounces.