Convert Arrowroot from Cup (US) to Ounces

How many ounces is 1 US cup of arrowroot?

1 US cup of arrowroot (arrowroot powder) is 4.34 ounces. 2 US cups of arrowroot is 8.68 ounces. 1/2 US cup of arrowroot is 2.17 ounces. 1/4 US cup (0.25 US cup) of arrowroot is 1.08 ounces. Use the converter below for any amount.

Arrowroot is a fine white starch ground from the root of the arrowroot plant, used to thicken sauces, fruit fillings, and glazes without clouding them. One metric cup (250 ml) weighs around 128 grams or 4.52 ounces. When a recipe lists arrowroot in cups but your packet only shows grams, converting by weight keeps a sauce from turning thin or gluey.

Arrowroot is a light powder that settles and compacts when scooped, so a cup measured by eye can swing by several grams. Weighing it gives a steadier thickening result across gravies, pie fillings, and custards.

Also known as

  • arrowroot powder
  • arrowroot starch
  • arrowroot flour

Corn flour (cornstarch) is the everyday stand-in for arrowroot, and the two swap 1:1 as thickeners. Arrowroot sets clearer and copes better with acidic or frozen sauces, while corn flour is cheaper and clouds a little. They weigh close per cup (128 g vs 120 g). See our Corn Flour converter.

Tapioca starch is arrowroot's close cousin, another clear-setting root starch that swaps 1:1. Tapioca is a little lighter per cup (120 g vs 128 g) and sets a stretchier, glossier gel, while arrowroot sets firmer and copes well with acidic sauces. See our Tapioca Starch converter.

Out of arrowroot? See arrowroot substitutes →

No measuring cups? The tool below gets you close. For consistent results, grab a measuring cup set.

Arrowroot Measurement Converter

Enter a value and pick your units.

Result

0 Ounces

Common Arrowroot Conversions

Here are the most common arrowroot conversions from cups (US) to ounces.

Cups (US)Ounces
0.25 cups (US)1.08 oz
0.5 cups (US)2.17 oz
0.75 cups (US)3.25 oz
1 cup (US)4.34 oz
1.25 cups (US)5.42 oz
1.5 cups (US)6.51 oz
2 cups (US)8.68 oz
2.5 cups (US)10.85 oz
3 cups (US)13.02 oz

Arrowroot Conversion Chart

The conversion chart below gives a quick reference for converting arrowroot from Cup (US) to Ounces and other measurements.

cup(US)ouncescupgramstbsptsp
0.25 cup (US)1.08 oz0.24 cup30.72 g4 tbsp12 tsp
0.5 cup (US)2.17 oz0.48 cup61.44 g8 tbsp24 tsp
1 cup (US)4.34 oz0.96 cup122.88 g16 tbsp48 tsp
2 cup (US)8.68 oz1.92 cup245.76 g32 tbsp96 tsp

Frequently Asked Questions

How many ounces is 1 US cup of arrowroot?
1 US cup of arrowroot is 4.34 ounces. The ratio is fixed, so 2 US cups of arrowroot is 8.68 ounces and 0.5 US cups is 2.17 ounces. Use the converter above for any quantity, or check the conversion chart on this page for the most common amounts at a glance. Open the arrowroot converter
How many ounces is 1.5 US cups of arrowroot?
1.5 US cups of arrowroot is 6.51 ounces. The ratio is fixed, so 1 US cup of arrowroot is 4.34 ounces and 2 US cups is 8.68 ounces. Type any other amount into the converter above for the exact figure, or use the chart below for the common ones.
How many ounces is 2 US cups of arrowroot?
2 US cups of arrowroot is 8.68 ounces. Conversions scale in a straight line, so halving or doubling a recipe keeps the same ratio. 1 US cup of arrowroot is 4.34 ounces, and you can multiply or divide that figure to match whatever your recipe needs. Enter any amount in the converter above for an exact ounces reading.
How many US cups of arrowroot is 4.34 ounces?
4.34 ounces of arrowroot is 1 US cup. The conversion works the same in reverse, so you can switch between ounces and US cups without changing the result. This helps when a recipe lists US cups but you would rather weigh or measure in ounces. The converter above and the chart below cover both directions for any amount.
How many ounces is 1 US cup of arrowroot powder?
Arrowroot powder is another name for arrowroot, so 1 US cup of arrowroot powder is 4.34 ounces, exactly the same as arrowroot. The figure does not change with the name: 2 US cups is 8.68 ounces and 0.5 US cups is 2.17 ounces. Use the converter above for any quantity, or read the conversion chart on this page for the most common amounts.
Are arrowroot and arrowroot powder the same thing?
Yes. Arrowroot powder is another name for arrowroot, so they are the same ingredient and convert identically. 1 US cup of arrowroot is 4.34 ounces under either name, and 2 US cups is 8.68 ounces. Recipes use the two names interchangeably, so you can follow either one without changing quantities or weighing any differently.
How many ounces is 1/2 US cup of arrowroot?
1/2 US cup of arrowroot is 2.17 ounces. The ratio is fixed, so 1 US cup of arrowroot is 4.34 ounces and 2 US cups is 8.68 ounces. Half measures come up often when scaling a recipe down, and the figure divides cleanly. Use the converter above for any other amount, or the chart below for the common ones.
How many ounces is 1/4 US cup of arrowroot?
1/4 US cup (0.25 US cup) of arrowroot is 1.08 ounces. The ratio is fixed, so 1 US cup of arrowroot is 4.34 ounces and 2 US cups is 8.68 ounces. Quarter amounts often come up when scaling a recipe down step by step, and the figure divides cleanly. Use the converter above for any other quantity, or the chart below for the most common amounts.

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