Home›Converters›Arrowroot starch

Arrowroot starch — Cups to Grams

One US cup of arrowroot starch weighs about 128 grams. That makes it heavier than all-purpose flour, which is 120 grams per cup. Gluten-free thickener; spoon and level — do not pack. Best in fruit fillings and acidic sauces where cornstarch fails. Use the converter below to switch arrowroot starch between cups, grams, ounces, tablespoons and millilitres — or read the full chart underneath.

Also known as arrowroot powder or arrowroot flour.

Amount

From

Convert to

Substitutions Ok Details →

Arrowroot starch conversion chart

Arrowroot starch — cups to grams chart
Cups	Grams	Ounces	Tablespoons	Millilitres
⅛ cup	16 g	0.564 oz	2	29.57 ml
¼ cup	32 g	1.13 oz	4	59.15 ml
⅓ cup	42.67 g	1.51 oz	5.33	78.86 ml
½ cup	64 g	2.26 oz	8	118.3 ml
⅔ cup	85.33 g	3.01 oz	10.67	157.7 ml
¾ cup	96 g	3.39 oz	12	177.4 ml
1 cup	128 g	4.52 oz	16	236.6 ml
1¼ cups	160 g	5.64 oz	20	295.7 ml
1½ cups	192 g	6.77 oz	24	354.9 ml
2 cups	256 g	9.03 oz	32	473.2 ml
3 cups	384 g	13.55 oz	48	709.8 ml

Grams to cups: arrowroot starch

Arrowroot starch — grams to cups chart
Grams	Cups	Ounces	Tablespoons
10 g	0.078	0.353 oz	1.25
25 g	0.195	0.882 oz	3.12
50 g	0.391	1.76 oz	6.25
75 g	0.586	2.65 oz	9.37
100 g	0.781	3.53 oz	12.5
125 g	0.977	4.41 oz	15.62
150 g	1.17	5.29 oz	18.75
200 g	1.56	7.05 oz	25
250 g	1.95	8.82 oz	31.25
300 g	2.34	10.58 oz	37.5
400 g	3.13	14.11 oz	50
500 g	3.91	17.64 oz	62.5

How to measure arrowroot starch

Gluten-free thickener; spoon and level — do not pack. Best in fruit fillings and acidic sauces where cornstarch fails.

Because a cup measures volume rather than weight, the most reliable way to measure arrowroot starch is with a digital kitchen scale. If you are working from cups, keep your technique consistent every time so your results are repeatable. For more, see our guide on baking by weight versus volume.

No scale yet? You don't need a fancy one; any digital kitchen scale that reads in 1-gram steps does everything on this site. Well-rated kitchen scales on Amazon →

As an Amazon Associate, Cups & Grams earns from qualifying purchases, at no extra cost to you. How this works.

Substitutes for arrowroot starch

1 tbsp arrowroot = 1 tbsp tapioca starch (Bob's Red Mill)
Both gluten-free; tapioca gives similar glossy thickening in sauces and fruit fillings.
2 tsp arrowroot = 1 tbsp cornstarch (for thickening) (Bob's Red Mill)
Use arrowroot when thickening acidic liquids — cornstarch breaks down in acid. Avoid in dairy sauces (turns slimy).

See all arrowroot starch substitutes, ratios and sources →

Compare arrowroot starch

Arrowroot starch vs Cornstarch

Arrowroot starch conversions: FAQ

Why doesn't a cup of arrowroot starch weigh the same as a cup of water?

A cup measures volume, not weight. Arrowroot starch is less dense than water (128 g versus 237 g per cup), so the same volume has a different weight. Weighing in grams is the most accurate way to measure it.

Common arrowroot starch conversions

Quick-answer pages for the conversions people search for most.

100 g to cups

100 g arrowroot starch ≈ 0.781 cups

200 g to cups

200 g arrowroot starch ≈ 1.56 cups

250 g to cups

250 g arrowroot starch ≈ 1.95 cups

500 g to cups

500 g arrowroot starch ≈ 3.91 cups

¼ cup to grams

¼ cup arrowroot starch ≈ 32 g

½ cup to grams

½ cup arrowroot starch ≈ 64 g

1 cup to grams

1 cup arrowroot starch ≈ 128 g

2 cups to grams

2 cups arrowroot starch ≈ 256 g

Related converters

← All ingredient converters Cups to grams chart Recipe scaler

* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.