How Much Is 640 Grams of Cornstarch in Tablespoons?
640 grams of cornstarch equals 80.00 tbsp. Cornstarch has a density of 128g per cup. Because grams measure weight and tablespoons measure volume, the result depends on the ingredient's density.
Formula and Step-by-Step
- Start with 640 grams of cornstarch
- 1 cup of cornstarch = 128g
- 640g ÷ 128g/cup = 5 cups × 16 = 80.00 tablespoons
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
For the most consistent results, weigh cornstarch on a kitchen scale. Volume measurements can vary by 20-30% depending on how the flour is scooped.
Cornstarch at Different Amounts
How cornstarch scales across common grams measurements. Your amount (640 grams) is highlighted.
Other Amounts of Cornstarch
| Grams | US Tablespoons | Metric Tablespoon | Australian Tablespoon |
|---|---|---|---|
| 5 grams | 0.63 tbsp | 0.62 tbsp | 0.46 tbsp |
| 10 grams | 1.25 tbsp | 1.23 tbsp | 0.92 tbsp |
| 25 grams | 3.13 tbsp | 3.08 tbsp | 2.31 tbsp |
| 50 grams | 6.25 tbsp | 6.16 tbsp | 4.62 tbsp |
| 75 grams | 9.38 tbsp | 9.24 tbsp | 6.93 tbsp |
| 100 grams | 12.50 tbsp | 12.32 tbsp | 9.24 tbsp |
| 150 grams | 18.75 tbsp | 18.48 tbsp | 13.86 tbsp |
| 200 grams | 25.00 tbsp | 24.65 tbsp | 18.48 tbsp |
| 250 grams | 31.25 tbsp | 30.81 tbsp | 23.10 tbsp |
| 500 grams | 62.50 tbsp | 61.61 tbsp | 46.21 tbsp |
| 640 grams | 80.00 tbsp | 78.86 tbsp | 59.15 tbsp |
Understanding the Units
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.
What is a Tablespoon?
Tablespoon sizes differ by country. A US tablespoon is 14.787 ml, close to the 15 ml metric standard used in most countries. An Australian tablespoon is 20 ml, about 35% larger than US. An imperial tablespoon is 17.758 ml. If your recipe comes from Australia, the larger tablespoon size can make a real difference.