How Many Grams in a Cup of Bread Flour?

Bread flour contains more protein—typically 11 to 13 percent—than all-purpose flour, which helps gluten develop the structure needed for chewy loaves and pizza dough. One US cup of bread flour weighs about 130 grams using the spoon-and-level technique. The higher protein and slightly denser particle size make it heavier per cup than standard all-purpose flour.

Accurate measuring matters because excess flour makes dough stiff and dry while too little produces slack, hard-to-shape loaves. Spoon flour into a dry measuring cup without shaking or tapping, then level flat. For artisan baking, weighing 130 grams per cup eliminates the variability that volume measuring introduces, especially with freshly milled or humid flour.

A frequent mistake is substituting bread flour one-for-one by volume without noting the weight difference. One cup of bread flour weighs roughly 10 grams more than all-purpose. Another error is over-kneading or adding extra flour during shaping because the dough feels sticky—sticky is normal until gluten fully develops.

Store bread flour in a sealed container in a cool pantry. Use within six months for peak performance; older flour loses protein strength and rising power. Substitute all-purpose flour plus a tablespoon of vital wheat gluten per cup when bread flour is unavailable, or use 130 grams all-purpose and accept slightly less chew.

Bread recipes written in grams translate cleanly to home scales: two cups of bread flour equal 260 grams, three cups equal 390 grams. When converting European recipes that list kilograms, remember that one kilogram of bread flour equals about 7.7 US cups at 130 grams each. High-hydration doughs are especially sensitive to flour weight because extra water needs balanced protein for structure. Keeping a printed cup-to-gram chart near your scale speeds weekday loaf prep and reduces the temptation to scoop flour directly from the bag when you are in a hurry.

Keep bread flour weight handy when adjusting hydration in artisan loaves: increasing water without increasing flour weight changes dough feel more than swapping a few grams of flour type. Weighing keeps hydration percentages honest across seasons and humidity swings.