One-Third Cup of Cream of Tartar in Grams
1/3 cup of cream of tartar weighs 79.67g (2.81 oz, 80ml) according to USDA FoodData Central (1 cup cream of tartar = 239g, 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.
Cream of Tartar Cup-to-Gram Conversion Table
Full range from 1 tablespoon to 3 cups. The highlighted row shows 1/3 cup.
| Amount | Grams |
|---|---|
| 1 tbsp | 14.94g |
| 2 tbsp | 29.88g |
| 1/8 cup | 29.88g |
| 1/4 cup | 59.75g |
| 1/3 cupthis page | 79.67g |
| 1/2 cup | 119.5g |
| 2/3 cup | 159.33g |
| 3/4 cup | 179.25g |
| 1 cup | 239g |
| 1 1/4 cups | 298.75g |
| 1 1/2 cups | 358.5g |
| 1 3/4 cups | 418.25g |
| 2 cups | 478g |
| 2 1/2 cups | 597.5g |
| 3 cups | 717g |
Source: USDA FoodData Central (FDC ID: 2074). 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) |
|---|---|
| Active Dry Yeast | 45.33g |
| Baking Powder | 76.67g |
| Baking Soda | 76.67g |
| Cream of Tartarcurrent | 79.67g |
All values use USDA FoodData Central spooned-and-leveled method. Click any ingredient to see its full conversion table.
Measuring Cream of Tartar Accurately
Why weight matters: 1/3 cup of cream of tartar can weigh anywhere from 68g to 96g depending on how you measure it. The USDA standard is 79.67g (spooned and leveled). Scooping directly from the container can add 10–20% extra weight, which affects recipe results — especially in baking.
About cream of tartar density: Cream of tartar: 1 teaspoon = 5g. Stabilizes egg whites in meringues. Mix 2 parts cream of tartar + 1 part baking soda = baking powder substitute. Also prevents sugar crystallization in candy making.
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 cream of tartar?
1/3 cup of cream of tartar weighs 79.67 grams (2.81 oz, 80ml). Based on USDA FoodData Central: 1 cup cream of tartar = 239g, so 1/3 cup = 239 × 0.333 = 79.67g.
Is 1/3 cup of cream of tartar the same weight every time?
The weight can vary slightly depending on measuring technique. Spooned and leveled gives 79.67g. Scooped (packed) can be 10–20% heavier. Sifted gives a lighter weight. The USDA standard (spooned and leveled) of 79.67g is the most reliable baseline for recipes.
How do I accurately measure 1/3 cup of cream of tartar?
For accuracy, use a kitchen scale and weigh 79.67g of cream of tartar. If using measuring cups, spoon the cream of tartar 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 cream of tartar compare to other ingredients?
1/3 cup of different ingredients varies significantly: Active Dry Yeast = 45.33g, Baking Powder = 76.67g, Baking Soda = 76.67g. This is because each ingredient has a different density.