28 Oz to Cups
28 US fluid ounces equals 3.5 US cups (3 1/2 cup). Change the amount, swap units, or copy the result. Fluid volume only, not weight ounces.
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Default conversion: 28 US fl oz is 3 1/2 cup (3.5 cups); 56 US tbsp / approximately 828.06 mL.
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Calculation for 28 US fl oz
28 US fl oz ÷ 8 = 3.5 US cups = 3 1/2 cup. 28 US fl oz × 2 = 56 US tablespoons.
The cup fraction is exact for this whole-number fluid-ounce input. The milliliter equivalent is 28 × 29.5735295625, rounded to 828.06 mL. Weight ounces require ingredient-specific data and are not converted here.
All volume units in this converter are US customary units. The primary decimal is rounded to four places and milliliters to two. For arbitrary inputs, the displayed cup fraction is a nearby fraction with a denominator up to 16, not necessarily an exact equivalent. This does not convert weight ounces or Imperial fluid ounces. NIST unit conversion reference.
Real-World Context & Technical Standards
Large Canned Whole Tomatoes (28 oz Can)
The famous 28 oz tin of Italian whole peeled San Marzano tomatoes is the indispensable cornerstone of pasta sauce and chili recipes.
Contoured Sports Drink Bottle
Large single-serve sports beverage bottles (Gatorade/Powerade) commonly package 28 fluid ounces (828 mL).
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Frequently Asked Questions
How many cups is 28 oz of liquid?
There are 8 fluid ounces in 1 US cup. Dividing 28 by 8 gives 3.5 cups (or 3 1/2 cup).
How many tablespoons is 28 fl oz?
Each US fluid ounce equals 2 US tablespoons. Therefore, 28 US fl oz = 56 US tablespoons.
Can I convert 28 ounces by weight to cups here?
No. This tool converts volume, not mass. If 28 oz is a scale reading or a package's net weight, cups depend on the ingredient's density. A volume measured in US fluid ounces still follows the same volume ratio, regardless of the ingredient.
Does this use a metric cup or Imperial fluid ounce?
Neither. This tool uses US customary cups and US fluid ounces. Check the unit system in your recipe before using the result; different cup or fluid-ounce definitions are not interchangeable.