How many grams is 1/3 teaspoon of cornstarch?
How many grams is 1/3 teaspoon of cornstarch?
Answer
One US teaspoon (4.93 ml) of cornstarch weighs 2.67 grams, from USDA FoodData Central, SR Legacy entry 169698 “Cornstarch”, portion “1 cup” = 128 grams, and 1 US cup = 48 US teaspoons.
1/3 teaspoon of cornstarch equals 0.89 grams; the way back, from grams to teaspoons, is the Grams to Teaspoons converter.
This is the level US teaspoon of 4.93 ml. A recipe written for the metric teaspoon of 5 ml means 1.4 % more: 0.9 grams.
How 1/3 teaspoon of cornstarch was converted to grams
One US teaspoon of cornstarch weighs 2.67 grams (two point six seven), so multiply 1/3 by (128 ÷ 48).
1/3 × (128 ÷ 48) g
≈0.89 grams
(zero point eight nine grams)
The weight of the teaspoon comes from USDA FoodData Central, SR Legacy entry 169698 “Cornstarch”, portion “1 cup” = 128 grams, and 1 US cup = 48 US teaspoons. Scooped ingredients vary with how they are filled — spooned in lightly, a teaspoon weighs less; packed down, more — so for baking a kitchen scale is the exact tool and this figure the standard reference.
1/3 teaspoon of other ingredients in grams
The same teaspoon weighs differently for every ingredient: airy ones such as oats and cocoa are light, dense ones such as honey and salt heavy. Your ingredient is highlighted.
| Ingredient | 1/3 teaspoon in grams | One US teaspoon weighs |
|---|---|---|
| All-purpose flour | 0.87 grams | 2.6 grams |
| Granulated sugar | 1.39 grams | 4.17 grams |
| Brown sugar, packed | 1.53 grams | 4.58 grams |
| Brown sugar, unpacked | 1.01 grams | 3.02 grams |
| Powdered sugar, unsifted | 0.83 grams | 2.5 grams |
| Powdered sugar, sifted | 0.69 grams | 2.08 grams |
| Butter | 1.58 grams | 4.73 grams |
| Water | 1.64 grams | 4.93 grams |
| Whole milk | 1.69 grams | 5.08 grams |
| White rice, uncooked | 1.28 grams | 3.85 grams |
| White rice, cooked | 1.1 grams | 3.29 grams |
| Rolled oats | 0.56 grams | 1.69 grams |
| Honey | 2.35 grams | 7.06 grams |
| Table salt | 2.03 grams | 6.08 grams |
| Cocoa powder | 0.6 grams | 1.79 grams |
| Plain yogurt | 1.7 grams | 5.1 grams |
| Olive oil | 1.5 grams | 4.5 grams |
| Vegetable oil | 1.51 grams | 4.54 grams |
| Heavy cream | 1.65 grams | 4.96 grams |
| Sour cream | 1.6 grams | 4.79 grams |
| Peanut butter | 1.79 grams | 5.38 grams |
| Cornstarch | 0.89 grams | 2.67 grams |
| Baking powder | 1.53 grams | 4.6 grams |
| Baking soda | 1.53 grams | 4.6 grams |
| Active dry yeast | 1.33 grams | 4 grams |
| Ground cinnamon | 0.87 grams | 2.6 grams |
If the ingredient is not settled yet, start from how many grams 1/3 teaspoon is across every ingredient at once.
The other way round: how many teaspoons a weight fills
This page starts from teaspoons and answers in grams. The opposite question — how many teaspoons a weight from a recipe fills — is what the grams to teaspoons converter is for. Both read the same USDA weights, so their numbers agree: 100 grams of cornstarch is 37.5 teaspoons there.
Related Calculations
See Also
- Grams to Teaspoons - How many US teaspoons a weight of sugar, salt, baking powder, yeast or another ingredient fills — by USDA weights
- Tsp to Ml - Convert Teaspoons to Milliliters
- Ml to Tsp - Convert Milliliters to Teaspoons
- Tablespoons to Grams - How many grams a US tablespoon of butter, sugar, flour, honey or another ingredient weighs — by USDA data
- Cups to Grams - How many grams a US cup of flour, sugar, butter, rice or another ingredient weighs — by USDA data

US teaspoons of cornstarch to grams
| Teaspoons | Grams |
|---|---|
| 1/8 teaspoon | 0.33 grams |
| 1/4 teaspoon | 0.67 grams |
| 1/3 teaspoon | 0.89 grams |
| 1/2 teaspoon | 1.33 grams |
| 2/3 teaspoon | 1.78 grams |
| 3/4 teaspoon | 2 grams |
| 1 teaspoon | 2.67 grams |
| 1 1/4 teaspoons | 3.33 grams |
| 1 1/2 teaspoons | 4 grams |
| 1 3/4 teaspoons | 4.67 grams |
| 2 teaspoons | 5.33 grams |
| 2 1/4 teaspoons | 6 grams |
| 2 1/2 teaspoons | 6.67 grams |
| 3 teaspoons | 8 grams |
| 3 1/2 teaspoons | 9.33 grams |