How many grams are in 1 cup of Bread flour?
One US cup (240 ml) of bread flour weighs about 120 grams. A US customary cup (236.6 ml) holds about 118 g, a metric cup (250 ml) about 125 g, and an imperial cup (284.1 ml) about 142 g.
Cups of Bread flour to grams
One US cup (240 ml) of bread flour weighs about 120 grams (4.2 oz), measured spoon and level.
Bread flour is milled from harder wheat with more protein, but per cup it measures just like all-purpose: 120 g spooned and levelled. The difference is in gluten strength, not density.
Ingredient
120 grams
US cup · bread flour · spoon and level
More precise value: 120 grams
- Cup standard
- US cup · 240 ml
- Ingredient
- bread flour
- Method
- spoon and level
- Density
- 0.5 g/ml
- Sources
- King Arthur · USDA FDC
- Reviewed
- 2026-08
Paste from anywhere — we convert every cup, stick and spoon we recognize and leave the rest untouched.
Converted recipe
Preferences can’t be saved in this browser — the converter still works normally.
No JavaScript? The reference tables below give the same answers.
Bread flour by cup standard
The same volume weighs more in a larger cup. These figures scale the reference weight of 120 g per 240 ml US cup by each cup standard’s exact volume.
| Cups | US cup | US customary cup | Metric cup | Imperial cup |
|---|---|---|---|---|
| ⅛ | 15 g | 15 g | 16 g | 18 g |
| ¼ | 30 g | 30 g | 31 g | 36 g |
| ⅓ | 40 g | 39 g | 42 g | 47 g |
| ½ | 60 g | 59 g | 63 g | 71 g |
| ⅔ | 80 g | 79 g | 83 g | 95 g |
| ¾ | 90 g | 89 g | 94 g | 107 g |
| 1 | 120 g | 118 g | 125 g | 142 g |
| 1½ | 180 g | 177 g | 188 g | 213 g |
| 2 | 240 g | 237 g | 250 g | 284 g |
bread flour, spoon and level. Reviewed 2026-08.
Tablespoons and teaspoons
Spoon measures use the US definitions: 1 tablespoon = 14.79 ml (16 per cup) and 1 teaspoon = 4.93 ml (3 per tablespoon).
| Measure | Grams (g) | Ounces (oz) |
|---|---|---|
| 1 tsp | 2.5 | 0.09 |
| 1 tbsp | 7.4 | 0.26 |
| 2 tbsp | 14.8 | 0.52 |
| 4 tbsp (¼ cup) | 29.6 | 1.04 |
| 8 tbsp (½ cup) | 59.1 | 2.09 |
| 16 tbsp (1 cup) | 118.3 | 4.17 |
How to measure Bread flour by volume
- Fluff, spoon into the cup, and level — never scoop from the bag.
- Treat “strong flour” in UK recipes as bread flour; the cup weight is the same.
Why the weight varies
Bread flour measures like all-purpose flour: spoon-and-level is repeatable, while scooping can add 10–30 g per cup.
Bread doughs are defined by hydration percentage — water weight divided by flour weight — so serious bread recipes work in grams. Baker’s percentages only work when the flour is weighed, which makes this conversion the on-ramp from cup recipes into real bread baking.
Which value we publish, and why
We publish 120 g per US cup (King Arthur, spoon-and-level), matching all-purpose practice; USDA lists 137 g for enriched bread flour.
Values you may see elsewhere
Sources: King Arthur · USDA FDC . Reference weight verified against King Arthur, USDA FDC. Reviewed 2026-08. Conversions are estimates — ingredient weight varies with packing and brand.
Frequently asked questions
How many grams is 1 tablespoon of Bread flour?
One US tablespoon (14.79 ml) of bread flour weighs about 7.4 g, and one teaspoon (4.93 ml) about 2.5 g.
How many ounces is 1 cup of Bread flour?
One US cup of bread flour weighs about 4.2 oz (120 g). Note these are weight ounces — for liquids, don’t confuse them with fluid ounces, which measure volume.