420g Brown Sugar in Cups
420 grams of packed brown sugar is 1⅞ cups — 220g per US cup. Cookies, crumbles and banana breads sit here, and packed brown sugar is heavier per cup than white sugar because the molasses binds the crystals.
How many cups is 420g of packed brown sugar?
420 grams of packed brown sugar equals:
Measuring by hand? That is 1 cup + 14 tablespoons + 1¾ teaspoons. It is about 84% of a 500 g box of brown sugar.
These figures assume firmly packed brown sugar — pressed into the cup so it holds its shape when tipped out. Loosely spooned brown sugar weighs far less.
Grams to Cups Converter
Quick select
420 grams of Brown Sugar (Packed) is about 1⅞ cups, using a 236.588 millilitre cup at 220 grams per cup.
Reading
- cups
- 1.91
- tbsp
- 30.5
- tsp
- 91.6
See the full 420g to cups guide →
See 420g brown sugar (packed) to cups →
US customary cup (236.588ml) · 220g per cup
Dedicated conversion guides use the default US customary cup.
Applies to this page only — the database value (220g per US cup) is unchanged.
420g of packed brown sugar vs other ingredients
Grams measure weight and cups measure volume, so the same 420 grams fills a different amount of cup for every ingredient:
| Ingredient | 420g in cups | g per cup |
|---|---|---|
| Brown Sugar (Packed) | 1⅞ cups | 220 |
| All-Purpose Flour | 3⅜ cups | 125 |
| Granulated Sugar | 2⅛ cups | 200 |
| Butter | 1⅞ cups | 227 |
See all 420g conversions on the 420 grams to cups chart.
Nearby packed brown sugar amounts
| Grams of packed brown sugar | Cups | Tablespoons |
|---|---|---|
| 375g | 1⅔ cups | 27 tbsp |
| 390g | 1¾ cups | 28 tbsp |
| 400g | 1⅞ cups | 29 tbsp |
| 410g | 1⅞ cups | 30 tbsp |
| 450g | 2 cups | 33 tbsp |
| 454g | 2⅛ cups | 33 tbsp |
| 480g | 2⅛ cups | 35 tbsp |
| 500g | 2¼ cups | 36 tbsp |
Full ladder on the brown sugar grams to cups chart.
Frequently Asked Questions
How many cups is 420g of packed brown sugar?
420 grams of packed brown sugar is 1⅞ cups. In kitchen measures that is 1 cup + 14 tablespoons + 1¾ teaspoons, worked out from 220 grams per US cup.
How many grams are in 1 cup of packed brown sugar?
One US cup of packed brown sugar weighs about 220 grams, one tablespoon about 13.75 grams, and one teaspoon about 4.58 grams. This page divides 420 grams by that cup weight.
Is 420g of packed brown sugar the same as 420g of all-purpose flour?
No. 420g of packed brown sugar is 1⅞ cups, while 420g of all-purpose flour is 3⅜ cups. Same weight on the scale, different volume in the cup, because the two have different densities.
How do I measure 420g of packed brown sugar without a scale?
Use 1 cup + 14 tablespoons + 1¾ teaspoons. These figures assume firmly packed brown sugar — pressed into the cup so it holds its shape when tipped out. Loosely spooned brown sugar weighs far less.
Is it better to weigh packed brown sugar or measure it in cups?
Weighing is more accurate, especially in baking, because it removes the variation in how the packed brown sugar is packed into the cup. If you have no scale, use the cup figure above and keep your measuring method consistent across the whole recipe.