Ounces → Cups
16 oz to cups
If you mean fluid ounces (liquid volume), 16 fl oz = 2 cups. If you mean weight ounces of a dry ingredient, the answer depends on density — 16 oz of flour is about 3 3/4 cups. Both are below.
2 cups (fluid)
16 fluid ounces ÷ 8 fl oz per cup = 2 cups
Fluid ounces vs weight ounces
This is the trap with “oz to cups.” A fluid ounce is a unit of volume; a regular ounce is a unit of weight. They only line up for water. For dry goods you must use the ingredient's density, which is why the weight table below differs for each one.
3 3/4 cups
16 ounces of all-purpose flour = 3.78 cups
16 oz by weight, per ingredient
| Ingredient | 16 oz in cups | Per-cup weight |
|---|---|---|
| 🌾 All-Purpose Flour | 3 3/4 cups | 120 g/cup |
| 🍞 Bread Flour | 3 9/16 cups | 127 g/cup |
| 🎂 Cake Flour | 3.979 cups | 114 g/cup |
| 🌿 Whole Wheat Flour | 4 cups | 113 g/cup |
| 🍚 Granulated Sugar | 2 1/4 cups | 200 g/cup |
| 🟤 Brown Sugar (packed) | 2 1/16 cups | 220 g/cup |
| ❄️ Powdered Sugar | 3 3/4 cups | 120 g/cup |
| 🧈 Butter | 1.998 cups | 227 g/cup |
| 🫒 Vegetable Oil | 2 1/16 cups | 218 g/cup |
| 🥛 Milk | 1 7/8 cups | 240 g/cup |
| 💧 Water | 1 15/16 cups | 237 g/cup |
| 🍯 Honey | 1 1/3 cups | 340 g/cup |
| 🍙 White Rice (uncooked) | 2 7/16 cups | 185 g/cup |
| 🥣 Rolled Oats | 5 1/16 cups | 90 g/cup |
| 🍫 Cocoa Powder | 5 1/3 cups | 85 g/cup |
Frequently asked questions
How many cups is 16 oz?
For liquids measured in fluid ounces, 16 fl oz equals 2 cups, since there are 8 fluid ounces in a US cup. For dry ingredients measured by weight, it depends on density — 16 oz of flour is about 3 3/4 cups.
Is 16 oz fluid ounces or weight ounces?
Recipes can mean either. Fluid ounces measure volume (8 fl oz = 1 cup). Weight ounces measure mass and must be converted using the ingredient's density. Check whether your recipe lists "fl oz" (volume) or "oz" by weight.
How many cups is 16 fluid ounces of water?
Water is the reference liquid, so 16 fluid ounces of water is 2 cups exactly.