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How Much Is 240 Teaspoons of Cornstarch in Grams?

240 teaspoons of cornstarch equals 640.00 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, 240 teaspoons of honey would be 1,700 g.

240 teaspoons of cornstarch
=
640.00g
Result using all teaspoon standards info
640.00 g (US) 649.22 g (Metric Teaspoon) 768.55 g (Imperial Teaspoon)
240 teaspoons of cornstarch is also
640.00

Formula and Step-by-Step

teaspoons × 2.67g/tsp = grams
  1. Start with 240 teaspoons of cornstarch
  2. 1 teaspoon of cornstarch = 2.67g
  3. 240 × 2.67 = 640g

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 teaspoons measurements. Your amount (240 teaspoons) is highlighted.

1.5 tsp4 g2 tsp5.33 g3 tsp8 g4 tsp10.67 g5 tsp13.33 g6 tsp16 g8 tsp21.33 g240 tsp640 g

For reference, 240 teaspoons of cornstarch (640g) is close in weight to a basketball (624g).

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
240 teaspoons 640.00 g 649.22 g 768.55 g

Understanding the Units

What is a Teaspoon?

In baking, teaspoon measurements are critical for ingredients where precision changes the outcome. Too much baking soda (1 tsp = 6g) creates a metallic taste, while too little means flat results.

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 640.00 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 240 teaspoons: 240 × 2.67 = 640.00 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: 640.00 g ÷ 2.67 = 240 teaspoons. Or use the Grams to Teaspoons converter.