28 Oz to Cups
28 fl oz is 3½ US cups (828 ml). A 28 oz can is labeled by net weight, so its cups depend on what is inside.
28 fl oz is
3½ cups
3.5 US cups · 3⅓ cups in metric cups · 828 ml
To measure 28 fl oz
3½ cups
A 28 oz can in cups
US cans of crushed and whole tomatoes are labeled by net weight (“Net Wt 28 oz”), not by volume, so 28 oz on a can is not 28 fl oz. The cups depend on what is packed in it and how much liquid it holds.
Crushed and whole tomato labels list about 7 servings of ½ cup, so a 28 oz can is about 3½ cups, juice included.
For any can, multiply the servings per container by the serving size on its Nutrition Facts label. Labels round both, and brands differ, so treat these as close, not exact.
What 28 fl oz weighs
| Ingredient | Grams | Ounces |
|---|---|---|
| Water | 826 g | 29.1 oz |
| Milk | 858 g | 30.3 oz |
| All-Purpose Flour | 438 g | 15.4 oz |
| Granulated Sugar | 700 g | 24.7 oz |
| Vegetable Oil | 763 g | 26.9 oz |
US cups, filled level (dry ingredients spooned in); weights reviewed August 15, 2026. Every ingredient’s weight per cup · How we calculate
Nearby amounts
| Fluid ounces | Cups |
|---|---|
| 14.5 fl oz | about 1¾ cups |
| 15 fl oz | 1⅞ cups |
| 16 fl oz | 2 cups |
| 24 fl oz | 3 cups |
| 28 fl oz | 3½ cups |
| 32 fl oz | 4 cups |
Every amount, with a converter: ounces to cups chart.
Questions
How many cups is 28 oz?
28 fl oz is 3½ US cups (828 ml). A 28 oz can is labeled by net weight, so its cups depend on what is inside.
How many cups are in a 28 oz can?
Crushed and whole tomato labels list about 7 servings of ½ cup, so a 28 oz can is about 3½ cups, juice included.
Is a US fluid ounce the same as a UK fluid ounce?
No. A US fluid ounce is 29.6 ml (29.5735 ml exactly) and a UK (imperial) fluid ounce is 28.4 ml (28.4131 ml), about 4% smaller. US recipes, nutrition labels and bottles sold in the US mean the US fluid ounce; older British recipes mean the UK one.
How do I measure 28 fl oz with cups and spoons?
Use 3½ cups. Level each cup and spoon with a knife.
How much does 28 fl oz weigh?
It depends on what fills it: 28 fl oz of water weighs 826 g, of all-purpose flour 438 g and of granulated sugar 700 g.