420 Grams to Cups

How many cups is 420 grams? Use this 420g to cups chart for flour, sugar, butter, oats, and other common baking ingredients.

420 grams turns up in larger cakes and bread doughs, especially flour amounts around 3⅓ cups of all-purpose flour.

How Many Cups Is 420 Grams?

420 grams is about 3⅜ cups of all-purpose flour, 2⅛ cups of granulated sugar, or 1⅞ cups of butter — the exact answer depends on the ingredient's density.

Ingredient420g in cupsg/cup
Water cups(1 cup + 12 tablespoons)240
All-Purpose Flour3⅜ cups(3 cups + 6 tablespoons)125
Granulated Sugar2⅛ cups(2 cups + 2 tablespoons)200
Brown Sugar (Packed)1⅞ cups(1 cup + 15 tablespoons)220
Butter1⅞ cups(1 cup + 14 tablespoons)227
Milk cups(1 cup + 11 tablespoons)245
Rice (Uncooked) cups(2 cups + 4 tablespoons)185
Oats4⅔ cups(4 cups + 11 tablespoons)90
Cocoa Powder4⅞ cups(4 cups + 14 tablespoons)86
Powdered Sugar cups(3 cups + 8 tablespoons)120

Custom Conversion

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Grams to Cups Converter

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All-Purpose Flour(Flours)
125g per cup
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Dedicated conversion guides use the default US customary cup.

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Converting 420 Grams to Cups

When converting 420 grams to cups, the result varies significantly based on the ingredient's density. Here's how the most common ingredients compare:

All-Purpose Flour

3⅜ cups

3 cups + 6 tablespoons

Almond Flour

4⅜ cups

4 cups + 6 tablespoons

Granulated Sugar

2⅛ cups

2 cups + 2 tablespoons

Brown Sugar (Packed)

1⅞ cups

1 cup + 15 tablespoons

Powdered Sugar

cups

3 cups + 8 tablespoons

Honey

cups

1 cup + 4 tablespoons

Why the Difference?

The reason 420g of flour isn't the same volume as 420g of sugar comes down to density. Flour is light and fluffy, with air trapped between particles, so a cup of flour weighs less. Sugar crystals pack together more densely, making a cup of sugar heavier.

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Frequently Asked Questions

420 grams equals different amounts in cups depending on the ingredient. For all-purpose flour, 420g is about 3.36 cups. For sugar, 420g is about 2.10 cups. Always check the specific ingredient for accurate conversion.

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