All-Purpose Flour
Ounce to Gram
Understanding All-Purpose Flour Conversions
The Math Behind This Conversion
To convert 1 ounces of all-purpose flour to grams, multiply by 28.3495 (the number of grams per ounce). So 1oz × 28.3495 = 28.3g.
Measurement Tip
For accurate all-purpose flour measurements, spoon the flour into your measuring cup and level it with a straight edge. Never scoop directly from the bag—this compacts the flour and can give you up to 30% more than intended, which will make your baked goods dense and dry.
About Our Data
The density value of 0.53 g/ml for all-purpose flour is from the USDA FoodData Central database (ID: 169761). This measurement was taken with all-purpose flour spooned into the measuring cup and leveled. Different measurement methods affect the density: sifted (0.45 g/ml), packed (0.63 g/ml), loose (0.5 g/ml).
Frequently Asked Questions
1 ounce of all-purpose flour weighs approximately 28 gram. This is based on a density of 0.53 g/ml for all-purpose flour.
For accurate all-purpose flour measurement, spoon the flour into your measuring cup and level it off with a knife. Don't scoop directly from the bag, as this compacts the flour and gives you more than intended.
Weighing all-purpose flour gives more consistent results than volume measurements. A cup of all-purpose flour can vary by 10-20% depending on how it's measured (spooned vs scooped). Professional bakers always weigh ingredients for this reason.
All-Purpose Flour has a density of 0.53 g/ml, meaning each milliliter weighs 0.53 grams. Different ingredients have different densities—for example, flour is lighter than sugar—which is why each needs its own conversion factor.