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Cooking conversion
Ounces of All-Purpose Flour to Milliliters
How many milliliters of all-purpose flour are in a given weight? Type a number of ounces below to see the volume. Math uses all-purpose flour's density of 0.508 g/mL.
Calculator
100 oz of all-purpose flour = 5580.61 mL
Ounces of All-Purpose Flour to Milliliters Conversion Table
Common values for all-purpose flour:
| Ounces of all-purpose flour | Milliliters |
|---|---|
| 10 oz | 558.06 mL |
| 25 oz | 1395.15 mL |
| 50 oz | 2790.31 mL |
| 100 oz | 5580.61 mL |
| 150 oz | 8370.92 mL |
| 200 oz | 11161.23 mL |
| 250 oz | 13951.54 mL |
| 500 oz | 27903.07 mL |
| 1000 oz | 55806.15 mL |
How this works
All-purpose flour has a density of about 0.508 g/mL (king arthur baking: 1 cup = 120g). That means 1 mL of all-purpose flour weighs 0.508 grams.
Milliliters = ounces × 55.8061
Note: Spooned and leveled, not packed. Sifted flour is closer to 0.42 g/mL.
Why a cup of all-purpose flour doesn't always weigh the same
Volume measurements are forgiving in some ways and brutal in others. A cup of all-purpose flour can vary by 10-20% in weight depending on how it's measured: spooned vs scooped, packed vs loose, sifted vs unsifted. The density figure used here (0.508 g/mL) matches the most common published recipe conventions, but if you're after baking precision, weighing on a kitchen scale is more accurate than measuring by volume.
Sourced from King Arthur Baking: 1 cup = 120g. Spooned and leveled, not packed. Sifted flour is closer to 0.42 g/mL.
Volume vs weight in cooking
The American convention of measuring ingredients by volume (cups, tablespoons, teaspoons) is convenient but introduces variability that doesn't exist in weight-based recipes. Most professional bakers and bakeries weigh ingredients to within a gram because the structure of baked goods depends on precise ingredient ratios. For everyday cooking — soups, sauces, sautés — the volume-to-weight imprecision rarely matters. For baking that depends on rising or texture (cakes, breads, laminated doughs), it matters a lot.
The conversion
Multiplying the volume of all-purpose flour by its density (0.508 g/mL) gives the weight in grams. The calculator at the top of this page does the math automatically; the formula box above shows the resulting linear factor for the specific volume and weight units selected here.