Potato starch converter

Potato starch and potato flour are different products. Use this reference for the starch named on the packet, before any liquid is mixed in.

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Potato starch
100 g = ⅝ cup
Grams Cups Ounces
1 g 1 g (< ½ tsp) 0.04
5 g ≈ 1 ½ tsp 0.18
10 g ≈ 3 tsp 0.35
25 g ≈ ⅛ cup 0.88
50 g ≈ ⅜ cup 1.76
100 g ⅝ cup 3.53
250 g ≈ 1 ⅝ cups 8.82

Reference used in this table: 1 cup (236.6 ml) ≈ 160 g

Start with a dry measure

Spoon the starch in lightly and level it, breaking up soft lumps without pressing the powder down. Keep water for a slurry separate from the starch quantity.

If your recipe specifies potato flour, a matching cup or gram amount from this starch table is not a verified substitution.

FAQ – Ingredient Conversion

How accurate are the cup and weight conversions?

Weight conversions use fixed unit factors. Cup and spoon estimates depend on the stated ingredient form and cup size. Milliliters measure volume; converting them to grams also needs an ingredient-specific reference. Without a reliable cup reference, the calculator uses grams and ounces.

Why do some small amounts convert to “≈ tsp” or “≈ tbsp”?

Small volumes may be shown as approximate spoon measures. Below half a teaspoon, the measured amount stays visible instead of being rounded up. Use a suitable scale or follow the recipe’s original measure for these small quantities.

Are the ounce (oz) and pound (lb) conversions exact?

The conversion factors between grams, ounces and pounds are exact and do not depend on the ingredient. The displayed result is rounded for readability.

Why do I see fractions like ⅛, ¼, or ⅜ in the results?

Many kitchen measurements are traditionally shown using simple fractions. Displaying amounts like “⅛ cup” or “¼ cup” makes the conversions easier to read and measure accurately with standard cups and spoons.

Why might some values look slightly different between ingredients?

Cup measurements depend on how dense an ingredient is. For example, 1 cup of flour does not weigh the same as 1 cup of sugar. Small differences also occur due to natural variations like brand, moisture, or packing. We use consistent reference values so your conversions stay reliable.