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Cups to Grams: Powdered / Confectioners Sugar Conversion Calculator | MiniCalci

Convert powdered / confectioners sugar from cups to grams and grams to cups. 1 cup of powdered sugar equals 120g (4.23 oz). Free conversion table & tips.

Density varies by ingredient, so grams per cup is different for each

Decimal cups are fine, e.g. 0.5 or 1.33

Powdered / Confectioners Sugar Cups to Grams Conversion

Converting powdered / confectioners sugar between US cups, grams, and ounces requires knowing its specific ingredient density. Unlike water (where 1 cup = 236.6g), dry and baking ingredients vary widely.

Key Powdered Sugar Measurement Rule

1 standard US Cup of Powdered / Confectioners Sugar = 120 grams (4.23 oz)
1 Tablespoon = 7.5 grams

Powdered Sugar Conversion Chart (Cups to Grams & Ounces)

Use this quick-reference table for common recipe fractions of powdered / confectioners sugar:

Volume (US Cups) Weight (Grams) Weight (Ounces)
1/8 cup (2 tbsp) 15 g 0.53 oz
1/4 cup (4 tbsp) 30 g 1.06 oz
1/3 cup 40 g 1.41 oz
1/2 cup (8 tbsp) 60 g 2.12 oz
2/3 cup 80 g 2.82 oz
3/4 cup (12 tbsp) 90 g 3.17 oz
1 cup (16 tbsp) 120 g 4.23 oz
1 1/4 cups 150 g 5.29 oz
1 1/2 cups 180 g 6.35 oz
1 3/4 cups 210 g 7.41 oz
2 cups 240 g 8.47 oz
2 1/2 cups 300 g 10.58 oz
3 cups 360 g 12.7 oz

Reverse Conversion: Grams to Cups (Powdered Sugar)

If you are following a recipe written in metric grams but only have cup measuring sets:

Weight (Grams) Equivalent Cups Approximate Kitchen Measure
25 g 0.21 cups 0.21 cups
50 g 0.42 cups 0.42 cups
75 g 0.63 cups 0.63 cups
100 g 0.83 cups 0.83 cups
125 g 1.04 cups 1 level cup
150 g 1.25 cups 1.25 cups
200 g 1.67 cups 1.67 cups
250 g 2.08 cups 2.08 cups
300 g 2.50 cups 2.50 cups
400 g 3.33 cups 3.33 cups
500 g 4.17 cups 4.17 cups

How to Correctly Measure Powdered Sugar

Powdered sugar is prone to clumping. If a recipe says "1 cup sifted powdered sugar," sift it first, then measure 120g. If it says "1 cup powdered sugar, sifted," weigh 120g first, then sift.

Culinary Notes & Baker's Tips

Also known as 10X sugar or icing sugar in the UK, Canada, and Australia. Contains about 3% cornstarch in the US to prevent caking.

Frequently Asked Questions

How many grams is 1 cup of powdered sugar?
1 cup of unsifted powdered sugar weighs about 120 grams (4.23 oz). If packed, it can reach up to 130g.
How many cups is 100g of powdered sugar?
100 grams of confectioners sugar is approximately 0.83 cups (or roughly 3/4 cup plus 1 tablespoon).

Related Calculators

How this is calculated: This tool uses standard, well-established formulas for cooking & kitchen calculations. Results are estimates for informational and planning purposes — always double-check figures for anything with real-world consequences (e.g. ordering materials or submitting grades).