Potato Starch: US Cups & tbsp to Grams (g) & Ounces (oz) Conversion
Convert volumes of potato starch measured in US cups and tablespoons (tbsp) to its approximate weight in metric grams (g) and imperial/US ounces (oz). Potato starch is a common gluten-free thickener and baking ingredient.
US Volume (Potato Starch)
Grams (g) (approx.)
Ounces (oz) (approx. by weight)
1 teaspoon (tsp)
4-5 g
0.14-0.18 oz
1 tablespoon (tbsp)
12-15 g (often ~12g or 14g)
0.42-0.53 oz
2 tablespoons (1/8 cup)
24-30 g
0.85-1.06 oz
1/4 cup
48-60 g
1.69-2.12 oz
1/3 cup
64-80 g
2.26-2.82 oz
1/2 cup
96-120 g
3.39-4.23 oz
1 cup
150-170 g (often ~160g)
5.29-5.99 oz
Important Considerations for Potato Starch:
Potato starch is a fine, dense powder. The weight of 1 US cup is typically around **150-170 grams** (approximately 5.3-6 ounces) when spooned and leveled.
Do not confuse potato starch with potato flour, which is made from whole cooked potatoes and is much heavier and behaves differently.
Potato starch is an excellent thickener for sauces and gravies, producing a clear, glossy result. It's also used in gluten-free baking for texture.
It thickens at a relatively low temperature and can become stringy if overcooked or boiled for too long.
For consistent thickening and baking results, measuring by weight with a kitchen scale is recommended.