Convert Cups to Grams: Arrowroot Powder
Convert cups of arrowroot powder to grams with this complete reference table. 1 cup of arrowroot powder = 128g (USDA FoodData Central, spooned-and-leveled method). Use the table below for fractions from 1/8 cup up to 4 cups. For precision baking, weight measurements in grams are always more reliable than volume measurements in cups, because arrowroot powder density can vary by measuring technique.
Arrowroot Powder Cups to Grams Table
| Cups | Grams |
|---|---|
| 1/8 cup | 16g |
| 1/4 cup | 32g |
| 1/3 cup | 42.7g |
| 1/2 cup | 64g |
| 2/3 cup | 85.3g |
| 3/4 cup | 96g |
| 1 cup | 128g |
| 1 1/4 cups | 160g |
| 1 1/2 cups | 192g |
| 2 cups | 256g |
| 3 cups | 384g |
| 4 cups | 512g |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Arrowroot powder: 1 cup = 128g — similar density to cornstarch. Starch from the arrowroot plant (Maranta arundinacea). Great thickener for fruit-based sauces. Unlike cornstarch, stays clear and glossy when cooled. Substitute: 1 tsp arrowroot = 1 tsp cornstarch for thickening.
About Arrowroot Powder Density
The density of arrowroot powder determines how much it weighs per unit of volume. At 0.533g/ml, 1 US cup (240ml) of arrowroot powder weighs 128g under USDA standard conditions.
Volume measurements can vary by ±10–20% depending on technique (sifted vs. spooned vs. scooped). For consistent baking results, use a kitchen scale with gram measurements whenever possible. The USDA standard (spooned-and-leveled) is the reference point for all values on this page.
Frequently Asked Questions
How many grams is 1 cup of arrowroot powder?
1 cup of arrowroot powder weighs 128 grams (USDA FoodData Central, spooned-and-leveled method, 1 US cup = 240ml).
How many grams is 1/2 cup of arrowroot powder?
1/2 cup of arrowroot powder weighs 64 grams.
How many grams is 1/4 cup of arrowroot powder?
1/4 cup of arrowroot powder weighs 32 grams.
Does measuring technique affect the weight of arrowroot powder?
Yes. Sifted arrowroot powder can weigh up to 20% less than packed or scooped. The USDA standard (spooned-and-leveled) of 128g/cup is the most reliable baseline.