A level tablespoon of bread flour weighs about 7.5 grams. King Arthur Baking lists bread flour at 120 g per cup, exactly the same as all purpose flour, so the grams in a tablespoon of bread flour match what you'd get with regular flour.
| Amount | Bread flour |
|---|---|
| 1/4 tsp | 0.6 g |
| 1/2 tsp | 1.3 g |
| 1 tsp | 2.5 g |
| 1 tbsp | 7.5 g |
| 1/4 cup | 30 g |
| 1/2 cup | 60 g |
| 1 cup | 120 g |
Same weight, different flour
It surprises people that bread flour and all purpose flour weigh the same by the cup. The difference between them isn't weight, it's protein. King Arthur Baking lists its bread flour at 12.7% protein, a bit higher than all purpose. More protein means more gluten, and more gluten means a chewier crumb and a dough that holds its shape.
So the number on the scale won't tell you which flour you've got, but your bread will. If a recipe asks for bread flour and you swap in all purpose gram for gram, the weight is right but the loaf will usually come out a little softer and flatter.
Why grams in a tablespoon of bread flour can shift
The 7.5 g figure assumes you fluffed the flour, spooned it in and leveled it. Real life is messier:
- Packing. Scooping straight from the bag presses flour into the spoon, so you get more than 7.5 g.
- Heaping. A rounded spoon can carry a lot of extra flour on top.
- Settling. Flour that's been sitting in a sack for weeks is denser than flour you just stirred.
For a whole loaf this adds up fast. That's why most bread bakers weigh everything, even the water.
Weighing also makes baker's percentages easy. In that system every ingredient is listed as a share of the flour weight, so if a recipe uses 500 g of flour and 2% salt, you need 10 g of salt. A scale gets you there without any cup math.
When you'll measure bread flour by the spoon
Bread recipes usually call for flour by the cup or by hundreds of grams. Tablespoons come up in smaller moments:
- Adjusting a sticky dough. Add 1 tablespoon (7.5 g) at a time and knead it in before deciding if you need more.
- Feeding a small starter. Tiny starters can call for just a few tablespoons of flour, and weighing keeps your ratio steady.
- Making a tangzhong or roux. These cooked flour pastes often use a few tablespoons of flour, and too much makes them thick and lumpy.
- Dusting a banneton or bench. Precision matters less here, so a light hand is enough.
How to measure it without a big scale
- Stir the flour to loosen it.
- Spoon it lightly into your measuring spoon until it overflows.
- Level it with the back of a knife.
- Skip the tapping and pressing.
Common mistakes include using a cutlery spoon instead of a real measuring spoon and forgetting that 1 tablespoon equals 3 teaspoons. If you're torn on tools, our post on digital measuring spoon vs kitchen scale walks through the tradeoffs.
A handy tip for those small dough adjustments: a MeasureMate digital measuring spoon scoops and weighs in one step, so you can add exactly 7.5 g without hauling out a big scale. Press tare to zero it, scoop, and read the display in 0.1 g steps. It switches between grams, ounces and other units, so it works with any recipe.
Quick questions
Does bread flour weigh more than all purpose flour?
Not by the cup in King Arthur Baking's chart. Both are listed at 120 g per cup, which is about 7.5 g per tablespoon.
How many grams is 1/4 cup of bread flour?
About 30 g, using 120 g per cup.
Can I swap bread flour for all purpose flour by weight?
Yes, gram for gram the weights match. Just expect a slightly chewier, taller result with bread flour.
Weights based on the King Arthur Baking ingredient weight chart and King Arthur Baking's bread flour product page.