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420g Powdered Sugar in Cups

420 grams of powdered sugar is 3½ cups — 120g per US cup. Large powdered-sugar weights are for layer-cake frostings and royal icing, where the sugar-to-fat ratio decides whether the icing sets or slumps.

420 g of powdered sugar is

3½ cups

3.5 US cups · 56 tbsp · 828 ml · 120 g per cup

To measure it · spoon and level

3½ cups

Rest of the recipe in grams? Paste it and every line comes back in cups. Free, no sign-in.

Measuring by hand? That is 3½ cups. It is about 84% of a 500 g bag of powdered sugar.

Powdered sugar clumps and compacts in the bag. Sift or whisk it first, then spoon it into the cup — do not tap the cup down.

420g of powdered sugar vs other ingredients

Ingredient420g in cupsPer cup
Powdered Sugar3½ cups120 g
All-Purpose Flour3⅓ cups125 g
Granulated Sugar2 cups + 1½ tbsp200 g
Butter1¾ cups + 1½ tbsp227 g

See all 420g conversions on the 420 grams to cups chart.

Another ingredient or amount

Nearby powdered sugar amounts

GramsCupsTablespoons
375 g3 cups + 2 tbsp50 tbsp
390 g3¼ cups52 tbsp
400 g3⅓ cups53.3 tbsp
410 gabout 3⅓ cups54.7 tbsp
425 g3½ cups56.7 tbsp
450 g3¾ cups60 tbsp
454 g3¾ cups60.5 tbsp
480 g4 cups64 tbsp

Full ladder on the powdered sugar grams to cups chart.

Questions

How many cups is 420g of powdered sugar?

420 grams of powdered sugar is 3½ cups, because one US cup weighs 120 grams.

How many grams are in 1 cup of powdered sugar?

One US cup of powdered sugar weighs about 120 grams, one tablespoon about 7.5 grams, and one teaspoon about 2.5 grams.

How do I measure 420g of powdered sugar without a scale?

Use 3½ cups. Powdered sugar clumps and compacts in the bag. Sift or whisk it first, then spoon it into the cup — do not tap the cup down.

Is it better to weigh powdered sugar or measure it in cups?

Weighing is more accurate, especially in baking, because it removes the variation in how the powdered sugar is packed into the cup. Without a scale, use the cup figure above and measure the same way throughout the recipe.

Weights are per US cup, spooned and levelled. How we calculate

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