One-Third Cup of Whole Wheat Flour in Grams
1/3 cup of whole wheat flour weighs 40g (1.41 oz, 80ml) according to USDA FoodData Central (1 cup whole wheat flour = 120g, spooned and leveled method). 1/3 cup = 0.3333 of a full cup (240ml). See the full conversion table below for all amounts from 1 tablespoon to 3 cups.
Whole Wheat Flour Cup-to-Gram Conversion Table
Full range from 1 tablespoon to 3 cups. The highlighted row shows 1/3 cup.
| Amount | Grams |
|---|---|
| 1 tbsp | 7.5g |
| 2 tbsp | 15g |
| 1/8 cup | 15g |
| 1/4 cup | 30g |
| 1/3 cupthis page | 40g |
| 1/2 cup | 60g |
| 2/3 cup | 80g |
| 3/4 cup | 90g |
| 1 cup | 120g |
| 1 1/4 cups | 150g |
| 1 1/2 cups | 180g |
| 1 3/4 cups | 210g |
| 2 cups | 240g |
| 2 1/2 cups | 300g |
| 3 cups | 360g |
Source: USDA FoodData Central (FDC ID: 20080). 1 US cup = 240ml. Values use spooned-and-leveled method.
1/3 Cup of Different Ingredients — Weight Comparison
1/3 cup of different ingredients varies widely in weight because each has a different density. This matters when substituting ingredients in recipes.
| Ingredient | 1/3 Cup (g) |
|---|---|
| Almond Flour | 32g |
| Cake Flour | 33.33g |
| Coconut Flour | 37.33g |
| Whole Wheat Flourcurrent | 40g |
| Buckwheat Flour | 40g |
| All-Purpose Flour | 41.67g |
| Bread Flour | 43.33g |
| Rice Flour (white) | 46.67g |
| Semolina Flour | 55.67g |
All values use USDA FoodData Central spooned-and-leveled method. Click any ingredient to see its full conversion table.
Measuring Whole Wheat Flour Accurately
Why weight matters: 1/3 cup of whole wheat flour can weigh anywhere from 34g to 48g depending on how you measure it. The USDA standard is 40g (spooned and leveled). Scooping directly from the container can add 10–20% extra weight, which affects recipe results — especially in baking.
About whole wheat flour density: Whole wheat flour includes the bran and germ, making it slightly coarser than all-purpose. 1 cup = 120g. The bran pieces prevent as tight a pack as all-purpose flour. Adds nutty flavor and nutrition to breads.
About 1/3 Cup as a Measurement
1/3 cup = 5 tablespoons + 1 teaspoon = 80ml. This unusual fraction appears in recipes that scale for 2 servings from a 3-serving base. It cannot be made from combining standard 1/4 and 1/8 cup measures without error.
One-third cup is common in yogurt parfait recipes, small-batch granola bars, and single-layer cake recipes scaled for 2 servings. It is exactly 80ml in metric volume.
Frequently Asked Questions
How many grams is 1/3 cup of whole wheat flour?
1/3 cup of whole wheat flour weighs 40 grams (1.41 oz, 80ml). Based on USDA FoodData Central: 1 cup whole wheat flour = 120g, so 1/3 cup = 120 × 0.333 = 40g.
Is 1/3 cup of whole wheat flour the same weight every time?
The weight can vary slightly depending on measuring technique. Spooned and leveled gives 40g. Scooped (packed) can be 10–20% heavier. Sifted gives a lighter weight. The USDA standard (spooned and leveled) of 40g is the most reliable baseline for recipes.
How do I accurately measure 1/3 cup of whole wheat flour?
For accuracy, use a kitchen scale and weigh 40g of whole wheat flour. If using measuring cups, spoon the whole wheat flour lightly into a 1/3 Cup measuring cup and level off the top with a straight edge. Avoid scooping directly from the container, which compacts the ingredient and adds extra weight.
How does 1/3 cup of whole wheat flour compare to other ingredients?
1/3 cup of different ingredients varies significantly: Almond Flour = 32g, Cake Flour = 33.33g, Coconut Flour = 37.33g. This is because each ingredient has a different density.