How Much Is 1 Teaspoon of Cornstarch in Grams?
1 teaspoon of cornstarch equals 2.67 g. Cornstarch has a density of 128g per cup (2.67g per teaspoon), which means it's relatively light compared to other common cooking ingredients. For comparison, 1 teaspoon of honey would be 7.08 g.
Formula and Step-by-Step
- Start with 1 teaspoon of cornstarch
- 1 teaspoon of cornstarch = 2.67g
- 1 × 2.67 = 2.67g
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Mental Math Shortcut
For 1 teaspoon of cornstarch, just remember: 2.67g. Double it for 2 teaspoons (5.33g), halve it for a half teaspoon (1.33g).
Measuring Tip
Different flour types have very different weights per cup. Always check the specific flour your recipe calls for rather than using a generic "flour" conversion.
Cornstarch at Different Amounts
How cornstarch scales across common teaspoons measurements. Your amount (1 teaspoon) is highlighted.
For reference, 1 teaspoon of cornstarch (2.67g) is close in weight to a US penny (2.5g).
Other Amounts of Cornstarch
| Teaspoons | US Grams | Metric Teaspoon | Imperial Teaspoon |
|---|---|---|---|
| 0.25 teaspoons | 0.67 g | 0.68 g | 0.80 g |
| 0.5 teaspoons | 1.33 g | 1.35 g | 1.60 g |
| 1 teaspoon | 2.67 g | 2.71 g | 3.20 g |
| 1.5 teaspoons | 4.00 g | 4.06 g | 4.80 g |
| 2 teaspoons | 5.33 g | 5.41 g | 6.40 g |
| 3 teaspoons | 8.00 g | 8.12 g | 9.61 g |
| 4 teaspoons | 10.67 g | 10.82 g | 12.81 g |
| 5 teaspoons | 13.33 g | 13.53 g | 16.01 g |
| 6 teaspoons | 16.00 g | 16.23 g | 19.21 g |
| 8 teaspoons | 21.33 g | 21.64 g | 25.62 g |
Understanding the Units
What is a Teaspoon?
A US teaspoon is 4.929 ml, a metric teaspoon is exactly 5 ml, and an imperial teaspoon is 5.919 ml. The metric and US versions are nearly identical (1.4% difference), but the imperial teaspoon is 20% larger. For most spices the difference is negligible, but for leaveners like baking powder it can affect the result.
What is a Gram?
Grams are the preferred unit in professional kitchens and bakeries because they allow exact recipe scaling. To double a recipe, simply double the gram values. No need to worry about how tightly an ingredient is packed into a cup.