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How Much Is 2.66 Tablespoons of Cornstarch in Grams?

2.66 tablespoons of cornstarch equals 21.28 g. Cornstarch has a density of 128g per cup (8g per tablespoon), which means it's relatively light compared to other common cooking ingredients. For comparison, 2.66 tablespoons of honey would be 56.53 g.

2.66 tablespoons of cornstarch
=
21.28g
Result using all tablespoon standards info
21.28 g (US) 21.59 g (Metric Tablespoon) 28.78 g (Australian Tablespoon)
2.66 tablespoons of cornstarch is also
21.28

Formula and Step-by-Step

tablespoons × 8g/tbsp = grams
  1. Start with 2.66 tablespoons of cornstarch
  2. 1 tablespoon of cornstarch = 8g
  3. 2.66 × 8 = 21.28g

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

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 tablespoons measurements. Your amount (2.66 tablespoons) is highlighted.

1 tbsp8 g2 tbsp16 g2.66 tbsp21.28 g3 tbsp24 g4 tbsp32 g5 tbsp40 g6 tbsp48 g8 tbsp64 g

For reference, 2.66 tablespoons of cornstarch (21.28g) is close in weight to an AA battery (23g).

Other Amounts of Cornstarch

Tablespoons US Grams Metric Tablespoon Australian Tablespoon
1 tablespoon 8.00 g 8.12 g 10.82 g
2 tablespoons 16.00 g 16.23 g 21.64 g
2.66 tablespoons 21.28 g 21.59 g 28.78 g
3 tablespoons 24.00 g 24.35 g 32.46 g
4 tablespoons 32.00 g 32.46 g 43.28 g
5 tablespoons 40.00 g 40.58 g 54.10 g
6 tablespoons 48.00 g 48.69 g 64.92 g
8 tablespoons 64.00 g 64.92 g 86.56 g
10 tablespoons 80.00 g 81.15 g 108.20 g
12 tablespoons 96.00 g 97.38 g 129.84 g
16 tablespoons 128.00 g 129.84 g 173.13 g

Understanding the Units

What is a Tablespoon?

One tablespoon holds about 15 milliliters. There are 16 tablespoons in a cup and 3 teaspoons in a tablespoon. In baking, tablespoon measurements are used for butter, oil, honey, and other ingredients where a full cup would be too much.

What is a Gram?

Weighing ingredients in grams eliminates the variability of volume measurements. A cup of flour can weigh anywhere from 120g to 160g depending on how it was scooped, but 120g of flour is always 120g of flour.

Frequently Asked Questions

About 21.28 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 tablespoons by 8 (grams per tablespoon for cornstarch). For 2.66 tablespoons: 2.66 × 8 = 21.28 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: 21.28 g ÷ 8 = 2.66 tablespoons. Or use the Grams to Tablespoons converter.