420g Flour in Cups
420 grams of all-purpose flour is 3⅜ cups — 125g per US cup. Bread and batch amounts are where cup measuring drifts furthest: four scooped cups of flour can weigh 100 g more than four spooned cups.
How many cups is 420g of all-purpose flour?
420 grams of all-purpose flour equals:
Measuring by hand? That is 3 cups + 5 tablespoons + 2¼ teaspoons. It is about 84% of a 500 g bag of flour.
Fluff the flour, spoon it into the cup, and level the top. Pushing the cup into the bag compacts it and can pack 30% more flour into the same "1 cup".
Grams to Cups Converter
Quick select
420 grams of All-Purpose Flour is about 3⅜ cups, using a 236.588 millilitre cup at 125 grams per cup.
Reading
- cups
- 3.36
- tbsp
- 53.8
- tsp
- 161.3
See the full 420g to cups guide →
See 420g all-purpose flour to cups →
US customary cup (236.588ml) · 125g per cup
Dedicated conversion guides use the default US customary cup.
Applies to this page only — the database value (125g per US cup) is unchanged.
420g of all-purpose flour 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 |
|---|---|---|
| All-Purpose Flour | 3⅜ cups | 125 |
| Granulated Sugar | 2⅛ cups | 200 |
| Butter | 1⅞ cups | 227 |
| Water | 1¾ cups | 236 |
See all 420g conversions on the 420 grams to cups chart.
Nearby all-purpose flour amounts
| Grams of all-purpose flour | Cups | Tablespoons |
|---|---|---|
| 375g | 3 cups | 48 tbsp |
| 390g | 3⅛ cups | 50 tbsp |
| 400g | 3¼ cups | 51 tbsp |
| 410g | 3¼ cups | 52 tbsp |
| 450g | 3⅝ cups | 58 tbsp |
| 454g | 3⅝ cups | 58 tbsp |
| 480g | 3⅞ cups | 61 tbsp |
| 500g | 4 cups | 64 tbsp |
Full ladder on the flour grams to cups chart.
Frequently Asked Questions
How many cups is 420g of all-purpose flour?
420 grams of all-purpose flour is 3⅜ cups. In kitchen measures that is 3 cups + 5 tablespoons + 2¼ teaspoons, worked out from 125 grams per US cup.
How many grams are in 1 cup of all-purpose flour?
One US cup of all-purpose flour weighs about 125 grams, one tablespoon about 7.81 grams, and one teaspoon about 2.6 grams. This page divides 420 grams by that cup weight.
Is 420g of all-purpose flour the same as 420g of granulated sugar?
No. 420g of all-purpose flour is 3⅜ cups, while 420g of granulated sugar is 2⅛ cups. Same weight on the scale, different volume in the cup, because the two have different densities.
How do I measure 420g of all-purpose flour without a scale?
Use 3 cups + 5 tablespoons + 2¼ teaspoons. Fluff the flour, spoon it into the cup, and level the top. Pushing the cup into the bag compacts it and can pack 30% more flour into the same "1 cup".
Is it better to weigh all-purpose flour or measure it in cups?
Weighing is more accurate, especially in baking, because it removes the variation in how the all-purpose flour 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.