1/2 Cup Tapioca Flour in Grams

1/2 cup of tapioca flour weighs 64 g (spooned and levelled, USDA). A full cup weighs 128 g, so the half cup is exactly half of that. Starch from cassava root; gives a chewy, glossy finish. All the figures on this page are approximate conversions based on the USDA value, so when a recipe really matters, verify with a kitchen scale.

Why weighing tapioca flour beats measuring it in cups

Half a cup of tapioca flour weighs 64 g, and that measure is the key to some of the chewiest baking there is: Brazilian cheese bread, gluten-free breads, and fruit pies where the filling needs to set glossy rather than cloudy. Tapioca flour, also called tapioca starch, is a pure starch from the cassava root, and it gives bakes a chewy, glossy finish that no other starch can match. It has no flavour of its own, so it disappears into the recipe, and it has no gluten, so it needs other flours or eggs to give a bake structure.

Tapioca flour is a thickener as well as a flour, and it behaves differently from cornstarch: it thickens at a lower temperature, gives a glossier finish, and holds up better when frozen and reheated, which is why it is the first choice for fruit pies that will be frozen. A pie filling thickened with tapioca flour sets clear and glossy, while one thickened with flour sets cloudy. The USDA figure of 128 g per cup is medium confidence, because tapioca flour varies by brand and by how finely it is ground. Half a cup is the amount in a batch of cheese bread, a fruit pie, or a gluten-free blend where tapioca is one of several starches.

Tapioca Flour cups to grams conversion table

Cups Grams Tablespoons
1/8 cup 16 g 2
1/4 cup 32 g 4
1/3 cup 42.7 g 5.3
1/2 cup 64 g 8
2/3 cup 85.3 g 10.7
3/4 cup 96 g 12
1 cup 128 g 16
1 1/2 cups 192 g 24
2 cups 256 g 32
3 cups 384 g 48

The table is built around the half cup, which is the measure this page is about, with the full-cup weight of 128 g as the anchor. Every row is the full-cup weight multiplied by the fraction, so the numbers stay consistent as you scale up or down. One tablespoon of tapioca flour weighs about 8 g, which is useful when a recipe calls for a spoonful rather than a cup.

Worked examples

Brazilian cheese bread, a batch of 12

A batch of 12 cheese breads uses about 1/2 cup of tapioca flour, which is 64 g, mixed with milk, oil, an egg and grated cheese to make a sticky dough. Weigh 64 g rather than measuring by cups, because tapioca flour is a fine starch that compresses easily. The dough will be sticky, so wet your hands to shape it, and bake until the breads puff and turn golden.

A fruit pie filling for one pie

A fruit pie filling uses about 1/2 cup of tapioca flour, which is 64 g, tossed with the fruit, sugar and lemon juice before baking. Weigh the flour so the filling sets glossy rather than runny: tapioca flour thickens at a lower temperature than cornstarch and gives a clear, glossy finish. Let the pie cool before slicing so the filling sets fully.

A gluten-free bread for two

A small gluten-free bread uses about 1/2 cup of tapioca flour, which is 64 g, mixed with rice flour, potato starch, xanthan gum, yeast and water. Weigh each ingredient so the blend is exact: tapioca flour gives the bread a chewy crumb, and the amount decides whether the bread is tender or gummy. Let the dough rise until doubled, then bake in a hot oven.

How the weight was measured

The figure on this page comes from USDA, measured spooned and levelled unless the method line says otherwise. Spooning means filling the cup with a spoon rather than plunging the cup into the bag, and levelling means sweeping a knife across the rim. Scooping packs the ingredient down and can add a fifth or more to the weight, which is why two bakers following the same cup-based recipe can get visibly different results.

Confidence in this value is medium. That reflects how consistent the ingredient is from brand to brand: a uniform, factory-packed ingredient is more predictable than a fresh, variable one. Even a high-confidence figure is still an approximation, because moisture, grind size and settling all shift the weight a little. Treat the grams on this page as a reliable starting point and check with a scale when the recipe is fussy, expensive, or being made for the first time.

Practical guidance

Store tapioca flour in an airtight container in a cool, dry place for up to 1 year, because it is a dry starch that keeps well. Always spoon the flour into the cup and level it, never scoop, because the fine starch compresses easily. Use tapioca flour for chewy bakes and glossy pie fillings, where its texture is an asset, and do not use it on its own, because it has no structure without other flours or eggs. For pie fillings, toss the tapioca flour with the fruit before baking, and let the pie cool before slicing so the filling sets. If you do not have a scale, spoon the flour loosely into the half cup and level it, remembering that the 64 g figure is approximate and medium confidence.

Common mistakes with half-cup measures

The most common mistake is treating a half cup as a casual measure. Half a cup of flour is 60 g, and a scooped half cup can easily weigh 70 g or more, which is a 15 percent error in a recipe that may only contain two or three cups of flour in total. Small measures carry the largest relative errors, so weighing matters more, not less, at this size. The second mistake is using a liquid measuring jug for dry flour: the meniscus line is designed for liquids, and flour measured in a jug is almost always over- or under-filled. Use a dry cup, or a scale. The third is assuming every flour weighs the same per half cup: the flours on this page range from about 42 g to about 82 g per half cup, so swapping flours cup for cup without adjusting the weight changes the recipe. Finally, do not pack flour into the half cup to make it look full: spoon and level, every time.

Frequently asked questions

How many grams is 1/2 cup of tapioca flour?

1/2 cup of tapioca flour weighs 64 g when spooned and levelled, according to the USDA, which lists 128 g per cup. The figure is medium confidence and approximate, because the grind varies by brand, so verify with a kitchen scale when it matters.

Is tapioca flour the same as tapioca starch?

Yes, the two names refer to the same product: a pure starch from the cassava root. Tapioca flour is the finer grind used in baking, while tapioca pearls are the larger form used in puddings, but the flour and the starch are the same thing.

Can I use tapioca flour instead of cornstarch?

Yes, in most recipes, but the two behave differently. Tapioca flour thickens at a lower temperature, gives a glossier finish, and holds up better when frozen, so it is the better choice for fruit pies. Weigh it rather than measuring by volume.

Is tapioca flour gluten-free?

Yes, tapioca flour is naturally gluten-free, because it is made from cassava root. It is a staple of gluten-free baking, where it gives bakes a chewy texture, though it needs other flours or eggs for structure.

How many cups is 100 g of tapioca flour?

100 g of tapioca flour is about 0.78 cups, or just over 3/4 cup. At 128 g per cup, divide 100 by 128 to get the answer, and use a scale for the most accurate result.

Related conversions

If you need a different amount, the table above scales in both directions, and the converter tool will do the maths for any quantity. When a recipe really matters, weigh the ingredient on a kitchen scale rather than trusting the cup alone, because the figures on this page are approximate and natural ingredients vary by brand, variety and moisture.