Ingredient Weight Converter · flour
Bread Flour: cups to grams
1 cup of bread flour weighs 127 grams. Use the converter below for any other amount, or check the quick-reference table.
By Andrew Flores, Editor and publisher, Nathan Management. Last reviewed .
Density source: USDA FoodData Central, cross-checked against the King Arthur Baking weight chart. How these figures are derived and corrected is documented in our editorial standards.
Bread Flour baseline: 1 cup = 127 g.
Common amounts
| Cups | Tablespoons | Grams | Ounces (weight) | Milliliters |
|---|---|---|---|---|
| 1/4 cup | 4.0 | 32 g | 1.12 oz | 59 mL |
| 1/3 cup | 5.3 | 42 g | 1.49 oz | 79 mL |
| 1/2 cup | 8.0 | 64 g | 2.24 oz | 118 mL |
| 2/3 cup | 10.7 | 85 g | 2.99 oz | 158 mL |
| 3/4 cup | 12.0 | 95 g | 3.36 oz | 177 mL |
| 1 cup | 16.0 | 127 g | 4.48 oz | 237 mL |
| 1.5 cups | 24.0 | 191 g | 6.72 oz | 355 mL |
| 2 cups | 32.0 | 254 g | 8.96 oz | 473 mL |
| 3 cups | 48.0 | 381 g | 13.44 oz | 710 mL |
| 4 cups | 64.0 | 508 g | 17.92 oz | 946 mL |
Spoon weights
Derived from the same 127 g per cup — a US tablespoon is 1/16 of a cup and a teaspoon is 1/48.
| Amount | Grams |
|---|---|
| 1 tablespoon | 7.9 g |
| 1 teaspoon | 2.6 g |
| 1/2 teaspoon | 1.3 g |
| 1/4 teaspoon | 0.66 g |
Bread Flour at a glance
- Protein
- 12–14%
- Water it will take
- roughly 3–5% more than AP at the same dough feel
- 5 lb bag yields
- about 18 cups spoon-and-leveled (2,268 g ÷ 127 g)
What a cup of bread flour actually weighs
The published 127 g assumes one specific way of filling the cup. Here is what the same cup weighs under the other common handling methods and product forms, and how far off the recipe you end up.
| How it was measured | Grams per cup | vs. published | Why |
|---|---|---|---|
| Spooned into the cup, leveled | 127 g | published figure | The published figure and the one bread recipes assume. |
| Scooped straight through the bag | ~155 g | +22% | Same compaction problem as AP flour: the cup packs the flour as it plows through. |
A tilde (~) marks a working estimate rather than a published figure — it varies with brand, grind, or how hard the cup was packed.
Why measuring bread flour by cup goes wrong
Bread flour and all-purpose flour look identical in the bag, but bread flour averages 12–14 percent protein versus 10–11 percent for AP. That extra protein builds a gluten network that holds gas — which is great for a sandwich loaf and unkind to a tender muffin. By weight, a cup of bread flour also runs about 7 grams heavier than AP because the flour is milled from harder wheat and the particles settle tighter.
Practical tips for working with bread flour
If a bread recipe calls for AP flour and you want a chewier crumb, you can swap bread flour 1:1 by volume — but recognize that you're adding 7 g of flour and you'll need a touch more water to keep hydration the same. The other direction is trickier. AP substituted into a recipe written for bread flour will give you a slack dough that needs less proofing and produces a finer, less open crumb. For pizza, bagels, and bread, weigh it. For everything else, a 1:1 by volume swap is fine.
Note from this ingredient's record: Higher protein than all-purpose, so it absorbs more water. A 1:1 swap into a soft cake batter will toughen the crumb.
Substitutions that work — and what they cost you
All-purpose flour
Ratio: 1:1 by volume, and pull back about 1 tablespoon of water per cup
Trade-off: AP absorbs less water, so a straight swap leaves a wetter, slacker dough. The loaf will be finer-crumbed with less chew and less oven spring.
AP plus vital wheat gluten
Ratio: 1 cup AP with 1 teaspoon vital wheat gluten replacing a teaspoon of the flour
Trade-off: Raises protein but not the milling. Closer to bread flour than plain AP; still not identical for bagels or pizza.
When bread flour ruins the recipe
| What you see | What went wrong | What to do |
|---|---|---|
| Loaf converted from an AP recipe comes out dense and tight | Bread flour drinks more water; measured 1:1 by volume the dough ends up under-hydrated. | Add 1–2 tablespoons of water per cup of bread flour, or convert the recipe to baker's percentages by weight. |
| Muffins are tough with long tunnels through the crumb | Bread flour's gluten developed while the batter was stirred. | Use AP flour and stir only until the dry streaks vanish. Tunnels are a mixing symptom, not an oven symptom. |
Storing bread flour
Airtight, room temperature, about a year. Bread flour is white flour — no germ, so no rancidity clock.
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