Powdered sugar – cups to grams

Powdered sugar is the most deceptive ingredient to measure by volume: a sifted cup can weigh half as much as a packed cup! Composed of pulverized sugar and a touch of cornstarch to prevent caking, precise measurement is non-negotiable. Our tool ensures you get the exact amount needed for silky frostings and tender shortcrusts, eliminating the guesswork.

Quick convert

  • US cup = 236.588 mL
  • 1 tbsp = 14.787 mL
  • 1 tsp = 4.929 mL

Reference table

Cups g
33
66
99
132
199
265

Essential for grit-free glazes, silky buttercream, and tender shortbread. The added starch absorbs moisture and helps stabilize whipped cream.

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FAQ

Why can't I substitute powdered sugar for granulated sugar in cakes?
Powdered sugar contains 3% cornstarch, which absorbs liquid differently, making batters drier. Also, because it's so fine, it doesn't create the necessary air pockets when creamed with butter, resulting in a dense, heavy cake.
Can I make caramel with powdered sugar?
No. The cornstarch (anti-caking agent) burns at the high temperatures required for caramelization before the sugar melts properly, leaving you with a burnt, cloudy mess instead of clear amber caramel.

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