Powdered Sugar Grams to Cups

Powdered Sugar grams to cups at a glance

One cup of powdered (confectioners') sugar weighs just 120 grams — barely more than half what granulated sugar weighs per cup, because it is mostly air between microscopic particles.

Powdered sugar compacts in the bag, so recipes assume unsifted, lightly spooned cups. If a recipe says "1 cup sifted powdered sugar," sift first, then measure — sifted cups weigh about 10% less. Frosting recipes are forgiving; glazes and macarons are not, so weigh when it matters.

1 Cup of Powdered Sugar in Grams

One cup of powdered sugar weighs 120 grams. Here are the common cup fractions by weight:

1 cup120g
¾ cup90g
⅔ cup80g
½ cup60g
⅓ cup40g
¼ cup30g

Grams to Cups Converter

Select an ingredient for accurate conversions

Quick select:
Powdered Sugar(Sugars & Sweeteners)
120g per cup
grams

Dedicated conversion guides use the default US customary cup.

Applies to this page only — the database value (120g per US cup) is unchanged.

Quick conversions:

100g150g200g250g300g500g

Powdered Sugar Density at a Glance

120g
per cup
7.5g
per tablespoon
2.5g
per teaspoon

See powdered sugar among 399 ingredients in the ingredient database.

Powdered Sugar Conversion Chart

Common gram amounts of powdered sugar converted to cups and tablespoons:

GramsCupsTablespoons
10g⅛ cup1 tbsp
15g⅛ cup2 tbsp
20g⅛ cup3 tbsp
25g¼ cup3 tbsp
28g¼ cup4 tbsp
30g¼ cup4 tbsp
35g⅓ cup5 tbsp
40g⅓ cup5 tbsp
45g⅜ cup6 tbsp
50g⅜ cup7 tbsp
56g½ cup7 tbsp
60g½ cup8 tbsp
65g½ cup9 tbsp
70g⅝ cup9 tbsp
75g⅝ cup10 tbsp
80g⅔ cup11 tbsp
85g¾ cup11 tbsp
90g¾ cup12 tbsp
100g⅞ cup13 tbsp
110g⅞ cup15 tbsp
113g1 cup15 tbsp
115g1 cup15 tbsp
120g1 cup16 tbsp
125g1 cup17 tbsp
130g1⅛ cups17 tbsp
140g1⅛ cups19 tbsp
150g1¼ cups20 tbsp
160g1⅓ cups21 tbsp
165g1⅜ cups22 tbsp
170g1⅜ cups23 tbsp
175g1½ cups23 tbsp
180g1½ cups24 tbsp
185g1½ cups25 tbsp
190g1⅝ cups25 tbsp
200g1⅔ cups27 tbsp
220g1⅞ cups29 tbsp
225g1⅞ cups30 tbsp
227g1⅞ cups30 tbsp
230g1⅞ cups31 tbsp
240g2 cups32 tbsp
250g2⅛ cups33 tbsp
255g2⅛ cups34 tbsp
260g2⅛ cups35 tbsp
275g2⅓ cups37 tbsp
280g2⅓ cups37 tbsp
300g2½ cups40 tbsp
320g2⅔ cups43 tbsp
340g2⅞ cups45 tbsp
350g2⅞ cups47 tbsp
360g3 cups48 tbsp
375g3⅛ cups50 tbsp
390g3¼ cups52 tbsp
400g3⅓ cups53 tbsp
410g3⅜ cups55 tbsp
420g3½ cups56 tbsp
450g3¾ cups60 tbsp
454g3¾ cups61 tbsp
480g4 cups64 tbsp
500g4⅛ cups67 tbsp
550g4⅝ cups73 tbsp
560g4⅔ cups75 tbsp
600g5 cups80 tbsp
650g5⅜ cups87 tbsp
700g5⅞ cups93 tbsp
750g6¼ cups100 tbsp
800g6⅔ cups107 tbsp
900g7½ cups120 tbsp
1000g8⅓ cups133 tbsp

Dedicated powdered sugar amount guides link directly; other rows link to the all-ingredient amount chart.

Sugars & Sweeteners compared by cup weight

Swapping one type for another changes the weight of a cup, so a recipe written in cups is not portable between them:

Type1 cupvs powdered sugar
Powdered Sugar120g—
Granulated Sugar200g+80g
Brown Sugar (Packed)220g+100g
Honey340g+220g
Maple Syrup322g+202g
Molasses328g+208g
Corn Syrup340g+220g
Agave Nectar336g+216g
Coconut Sugar180g+60g
Turbinado Sugar200g+80g

How packing changes a cup of powdered sugar

A cup of powdered sugar weighs about 120g when filled the way this chart assumes. Pressed down it can reach 156g, and dropped in loosely it can fall to 102g. Crystal size decides how much this matters: coarse sugars trap air and vary most, while fine sugars settle consistently.

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Frequently Asked Questions

100 grams of powdered sugar is about 0.83 cups — roughly ¾ cup plus 1½ tablespoons.

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