Grams to Cups: Tapioca Starch
If your recipe is written in cups but your scale reads grams — or the other way round — this page solves the conversion for tapioca starch. One cup of tapioca starch weighs about 120 grams, which works out to a density of 0.51 g/ml. From there, half a cup is roughly 60 g, a quarter cup about 30 g, and one tablespoon about 8 g.
Converting between weight and volume depends on density, and density is specific to each ingredient: a cup of tapioca starch does not weigh the same as a cup of flour or sugar. That is why this tool uses the measured density of tapioca starch rather than a one-size-fits-all figure.
Cooking measurement converter — Tapioca Starch
Result
0.833 cups
Common measures — Tapioca Starch
| Measure | Grams |
|---|---|
| 1 cup | 120 g |
| ¾ cup | 90 g |
| ½ cup | 60 g |
| ⅓ cup | 40 g |
| ¼ cup | 30 g |
| 1 tbsp | 7.5 g |
| 1 tsp | 2.5 g |
Data source: USDA FoodData Central / manual
How to measure tapioca starch accurately
How you fill the cup matters a lot with tapioca starch. Spoon it into the cup and level the top with the back of a knife. If you scoop the cup straight from the bag you compact the contents and can add up to 20% more weight than the recipe intends — a common reason baked goods turn out dense.
That is why weighing in grams is always more reliable than cups for precise baking. This page gives you the exact equivalence both ways, so you can use whichever method you prefer.
Frequently asked questions
How many grams are in a cup of tapioca starch?
One cup of tapioca starch weighs about 120 grams. Half a cup is roughly 60 grams and a quarter cup about 30 grams.
How many cups is 100 grams of tapioca starch?
100 grams of tapioca starch is about 0.83 cups. Use the calculator above for any other amount.
Where does this value come from?
From the ingredient's measured density (0.51 g/ml), based on established baking references. Bear in mind the real weight can vary slightly with brand and moisture.
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