Cups to Grams Flour Converter
Convert cups of flour to grams for any flour type used in baking. Different flours have different densities — a cup of cake flour weighs less than a cup of bread flour. This converter gives you precise gram measurements for 8 common flour types so your baking results are consistent every time. See also our Cups to Grams Converter and Grams to Cups Converter.
How to Convert Cups of Flour to Grams
Converting cups of flour to grams is essential for precise baking. The conversion depends on the type of flour because each variety has a different density. Cake flour is lighter and more finely milled, while bread flour is denser with higher protein content. Using the wrong gram equivalent can result in too-dry or too-wet dough.
- Select the type of flour you are using
- Note the grams-per-cup value for that flour type
- Multiply the number of cups by the grams-per-cup value
- The result is the weight in grams
Formula:
Grams = Cups × Grams per Cup (for specific flour type)
Example: 2 cups of all-purpose flour = 2 × 120 = 240 grams
Why Flour Type Matters for Cup-to-Gram Conversion
Not all flours are created equal. The protein content, milling process, and grain source all affect how much a cup of flour weighs. All-purpose flour (120g/cup) is the standard reference, but substituting bread flour (127g/cup) without adjusting means you are adding 7 extra grams per cup — which adds up quickly in recipes calling for multiple cups.
Alternative flours like almond flour (96g/cup) and coconut flour (80g/cup) are significantly lighter than wheat flours. Coconut flour also absorbs much more liquid, so substitution requires both weight adjustment and liquid adjustment. Always use flour-specific conversion values rather than a generic "flour" conversion.
Worked Example: Converting a Bread Recipe
A sandwich bread recipe calls for 3 cups of bread flour. Using our converter: 3 cups × 127 g/cup = 381 grams. If you only have all-purpose flour and want to substitute, you would still use 381 grams (by weight) of all-purpose flour, though the texture will differ slightly due to lower protein content. In ounces: 381 ÷ 28.35 = 13.44 oz. In tablespoons: 3 cups × 16 tbsp/cup = 48 tablespoons.
Cups to Grams Flour Reference Table
| Flour Type | ¼ Cup | ½ Cup | 1 Cup | 2 Cups |
|---|---|---|---|---|
| All-Purpose Flour | 30g | 60g | 120g | 240g |
| Bread Flour | 32g | 64g | 127g | 254g |
| Cake Flour | 29g | 57g | 114g | 228g |
| Whole Wheat Flour | 32g | 64g | 128g | 256g |
| Almond Flour | 24g | 48g | 96g | 192g |
| Coconut Flour | 20g | 40g | 80g | 160g |
| Self-Rising Flour | 30g | 60g | 120g | 240g |
| Rye Flour | 26g | 51g | 102g | 204g |
The Spoon-and-Level Method
The gram values in this converter assume the spoon-and-level method of measuring flour. This means spooning flour from the bag into the measuring cup (without compacting it) and then leveling off the top with a straight edge. This method produces the most consistent results and is the standard used by King Arthur Baking, America's Test Kitchen, and the USDA.
If you scoop flour directly from the bag with the measuring cup, you will compact the flour and get 140-150 grams per cup instead of 120 grams. This 20-25% difference can ruin delicate baked goods. Sifted flour is even lighter at about 100-110 grams per cup. When a recipe says "1 cup flour, sifted" versus "1 cup sifted flour," these are different amounts — the first means measure then sift, the second means sift then measure.
Flour Types Explained
- All-Purpose Flour (120g/cup): Medium protein (10-12%), suitable for most recipes from cookies to quick breads
- Bread Flour (127g/cup): High protein (12-14%), develops more gluten for chewy breads and pizza dough
- Cake Flour (114g/cup): Low protein (7-9%), finely milled for tender cakes and pastries
- Whole Wheat Flour (128g/cup): Contains bran and germ, denser and more nutritious, absorbs more liquid
- Almond Flour (96g/cup): Ground blanched almonds, gluten-free, high in fat and protein
- Coconut Flour (80g/cup): Very absorbent, requires more eggs and liquid, use ¼ to ⅓ the amount of wheat flour
- Self-Rising Flour (120g/cup): All-purpose flour with baking powder and salt pre-mixed
- Rye Flour (102g/cup): Lower gluten, used for rye bread and pumpernickel, often mixed with wheat flour
Converting Between Flour Types
When substituting one flour for another, convert by weight (grams) rather than volume (cups). If a recipe calls for 240g of all-purpose flour and you want to use bread flour, use 240g of bread flour — not 2 cups of bread flour (which would be 254g). The volume measurement changes because the densities differ, but the weight should remain the same for most substitutions. Note that gluten-free flours like almond and coconut flour cannot be substituted 1:1 by weight either, as they behave very differently in baking.
Frequently Asked Questions
How many grams is 1 cup of all-purpose flour?
One cup of all-purpose flour weighs 120 grams when measured using the spoon-and-level method. This is the standard value used by King Arthur Baking, America's Test Kitchen, and most professional baking resources. If you scoop flour directly from the bag, you may get 140-150 grams per cup due to compaction.
How many grams is 1 cup of bread flour?
One cup of bread flour weighs approximately 127 grams. Bread flour is slightly denser than all-purpose flour because of its higher protein content (12-14% vs 10-12%). This extra protein creates more gluten, which gives bread its chewy texture and structure.
Why does cake flour weigh less per cup than other flours?
Cake flour weighs only 114 grams per cup because it is more finely milled and has lower protein content (7-9%). The finer particles create more air space between them, making the flour lighter by volume. This fine texture is what gives cakes their tender, delicate crumb.
Can I substitute almond flour for all-purpose flour by weight?
Not directly. While you can use the same gram weight, almond flour behaves very differently in baking — it has no gluten, is high in fat, and produces denser results. Most recipes designed for almond flour are specifically formulated for it. As a general rule, you can replace up to 25% of all-purpose flour with almond flour without major issues.
How much does 1/2 cup of whole wheat flour weigh?
Half a cup of whole wheat flour weighs 64 grams (128g per cup ÷ 2). Whole wheat flour is slightly heavier than all-purpose flour because it contains the bran and germ of the wheat kernel, which add density. It also absorbs more liquid, so recipes may need additional moisture when using whole wheat flour.
Why is weighing flour better than measuring by cups?
Weighing flour eliminates the variability caused by different measuring techniques. A cup of flour can range from 100g (sifted) to 150g (scooped and packed) depending on method. This 50% variation can dramatically affect baking results. A digital scale gives you the exact amount every time, ensuring consistent results batch after batch.