Bread Flour
Metric Cup to Gram
US Cup (236ml)
130.1g
Metric Cup (250ml)
137.5g
A US cup (236.59ml) of bread flour weighs 130g, while a metric cup (250ml) weighs 138g. That's a 5.7% difference - make sure you know which cup size your recipe uses!
Bread Flour — Quick Reference
Common metric cup to gram conversions
| Metric Cup | Gram |
|---|---|
| ¼ cup | 34g |
| ⅓ cup | 46g |
| ½ cup | 69g |
| ⅔ cup | 92g |
| ¾ cup | 103g |
| 1 cup | 138g |
| 1½ cups | 206g |
| 2 cups | 275g |
Based on bread flour density of 0.55 g/ml (spooned method). Source: USDA FoodData Central.
Understanding Bread Flour Conversions
The Math Behind This Conversion
To convert 1 metric cup of bread flour to gram, we use the density of bread flour (0.55 g/ml). A metric cup contains 250ml, so 1 metric cup equals 250ml. Multiplying by the density: 250ml × 0.55 g/ml = 137.5g.
US vs Metric Cups: Why It Matters
When converting bread flour, the cup size matters significantly. A US cup (236.6ml) of bread flour weighs 130g, while a metric cup (250ml) weighs 138g—a difference of 7g (6%). If you're following a recipe from a different country, using the wrong cup size could affect your results. American recipes use US cups, while recipes from Australia, UK, and most other countries use metric cups.
Measurement Tip
For accurate bread 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 0.55 g/ml for bread flour is from the USDA FoodData Central database (ID: 168896). This measurement was taken with bread flour spooned into the measuring cup and leveled. Different measurement methods affect the density: sifted (0.47 g/ml), packed (0.65 g/ml).