swap_horiz Need Grams to Teaspoons instead?

How Much Is 0.5 Teaspoons of Cornstarch in Grams?

Converting 0.5 teaspoons of cornstarch to grams gives 1.33 g. One teaspoon of cornstarch weighs 2.67g, so 0.5 teaspoons is 0.5 × 2.67 = 1.33g. This conversion is specific to cornstarch because each ingredient has a different density.

0.5 teaspoons of cornstarch
=
1.33g
Result using all teaspoon standards info
1.33 g (US) 1.35 g (Metric Teaspoon) 1.60 g (Imperial Teaspoon)
0.5 teaspoons of cornstarch is also
1.33

Formula and Step-by-Step

teaspoons × 2.67g/tsp = grams
  1. Start with 0.5 teaspoons of cornstarch
  2. 1 teaspoon of cornstarch = 2.67g
  3. 0.5 × 2.67 = 1.33g

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Mental Math Shortcut

Half measures: take the weight of 1 teaspoon (2.67g) and divide by 2.

Measuring Tip

Humidity affects cornstarch weight. In humid conditions, flour absorbs moisture and weighs more per cup. Store it in an airtight container for consistent results.

Cornstarch at Different Amounts

How cornstarch scales across common teaspoons measurements. Your amount (0.5 teaspoons) is highlighted.

0.25 tsp0.67 g0.5 tsp1.33 g1 tsp2.67 g1.5 tsp4 g2 tsp5.33 g3 tsp8 g4 tsp10.67 g5 tsp13.33 g

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 teaspoon (tsp) is a US customary unit of volume equal to 4.929 milliliters or 1/3 of a tablespoon. It is the standard measure for spices, leaveners, extracts, and other small-quantity ingredients.

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.

Frequently Asked Questions

About 1.33 g, based on cornstarch having a density of 128g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of teaspoons by 2.67 (grams per teaspoon for cornstarch). For 0.5 teaspoons: 0.5 × 2.67 = 1.33 g.
For the most accurate results, weigh cornstarch on a kitchen scale. If measuring by volume, sift or whisk first to break up clumps, then spoon into the measuring spoon and level off. Do not scoop directly from the bag.
Yes, quite a bit. If you spoon the flour into your measuring spoon and level it off, you will get about 128 grams per cup. If you dip directly into the flour bag and sweep level, the flour packs tighter and you can end up with 140.8 to 160 grams per cup instead. This conversion uses the spoon-and-level method, which is the standard most baking references follow.
Reverse the conversion: 1.33 g ÷ 2.67 = 0.5 teaspoons. Or use the Grams to Teaspoons converter.