Conversion table

420 Grams to Cups

Q: How many cups is 420 grams of flour?

420 grams of all-purpose flour is 3.36 cups (3 and 3/8 cups), using the spoon-and-level method at 125g per US cup. That equals 3 cups + 5 tablespoons + 2 teaspoons.

Q: How many cups is 420 grams of sugar?

420 grams of granulated sugar is 2.1 cups (2 and 1/8 cups), at about 200g per US cup. That equals 2 cups + 1 tablespoon + 2 teaspoons.

Q: How many cups is 420 grams of butter?

420 grams of butter is approximately 1.85 cups (1 and 7/8 cups), at 227g per US cup. That equals about 3 and 3/4 US butter sticks, or 29 tablespoons + 2 teaspoons.

Q: How many cups is 420 grams of honey?

420 grams of honey is approximately 1.235 cups (1 and 1/4 cups), at about 340g per US cup. Honey is very dense, which is why 420g fills only 1.25 cups.

Q: Is 420 grams the same in a US cup vs a metric cup?

No. The US customary cup is 236.6ml while the metric cup is 250ml. For 420g of flour: US cup = 3.36 cups, metric cup = 3.18 cups. Always confirm which cup standard your recipe uses.

420 grams is 3⅜ cups of all-purpose flour, 2⅛ cups of granulated sugar, or 1⅞ cups of butter — a large baking quantity that spans more than 2 cups depending on ingredient density.

420g of flour is enough for a standard 9-inch double-layer cake, and 420g of sugar is a full batch of most cookie recipes.

How Many Cups Is 420 Grams?

420 grams is 3⅜ cups of flour and 2⅛ cups of sugar, but only 1¼ cups of honey. The spread from 1¼ cups (honey) to nearly 4⅔ cups (cocoa powder) shows how drastically ingredient density changes the result.

Ingredient	420g in cups	Tablespoons	g/cup
Water	1¾ cups(1 cup + 12 tbsp)	28.5	237
All-Purpose Flour	3⅜ cups(3 cups + 5 tbsp + 2 tsp)	53.8	125
Granulated Sugar	2⅛ cups(2 cups + 1 tbsp + 2 tsp)	33.6	200
Brown Sugar (Packed)	1⅞ cups(1 cup + 14 tbsp + 1 tsp)	30.5	220
Butter	1⅞ cups(1 cup + 13 tbsp + 2 tsp)	29.6	227
Milk	1¾ cups(1 cup + 11 tbsp + 1 tsp)	27.5	245
Rolled Oats	4⅔ cups(4 cups + 10 tbsp + 2 tsp)	74.7	90
Rice (Uncooked)	2¼ cups(2 cups + 3 tbsp + 1 tsp)	36.3	185
Cocoa Powder	4⅔ cups(4 cups + 3 tbsp + 1 tsp)	67.2	100
Honey	1¼ cups(1 cup + 3 tbsp + 2 tsp)	19.8	340

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Grams to Cups Converter

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All-Purpose FlourFlours

125g per cup

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3⅜

cups

420g of All-Purpose Flour

cups: 3.36
tbsp: 53.8
tsp: 161.3

Measured out: 3 cups + 5 tablespoons + 2 teaspoons

1 cup (236.588ml) = 125g

See the full 420g to cups guide → See 420g all-purpose flour to cups →

US customary cup (236.588ml) · 125g per cup

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Dedicated conversion guides use the default US customary cup.

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420g to Cups Chart for 28 Ingredients

This chart converts 420 grams to cups, tablespoons, and teaspoons using the US customary cup (236.588ml) for 28 common baking and cooking ingredients.

Ingredient	420g in cups	Tbsp	Tsp	g per cup
Flours
All-Purpose Flour	3⅜ cups	53.8	161.3	125
Bread Flour	3⅜ cups	52.9	158.7	127
Cake Flour	3½ cups	56.0	168.0	120
Whole Wheat Flour	3½ cups	56.0	168.0	120
Almond Flour	4⅜ cups	70.0	210.0	96
Oat Flour	4⅜ cups	68.6	205.7	98
Rye Flour	4⅛ cups	65.9	197.6	102
Sugars & Sweeteners
Granulated Sugar	2⅛ cups	33.6	100.8	200
Brown Sugar (Packed)	1⅞ cups	30.5	91.6	220
Powdered Sugar	3½ cups	56.0	168.0	120
Caster Sugar	2⅛ cups	33.6	100.8	200
Honey	1¼ cups	19.8	59.3	340
Maple Syrup	1⅜ cups	20.9	62.7	322
Butter, Oils & Fats
Butter	1⅞ cups	29.6	88.9	227
Vegetable Oil	1⅞ cups	30.8	92.5	218
Olive Oil	1⅞ cups	31.1	93.3	216
Coconut Oil	1⅞ cups	30.8	92.5	218
Peanut Butter	1⅔ cups	26.0	78.1	258
Grains & Rice
Rolled Oats	4⅔ cups	74.7	224.0	90
Rice (Uncooked)	2¼ cups	36.3	109.0	185
Quinoa (Dry)	2½ cups	39.5	118.6	170
Cornmeal	3⅜ cups	55.1	165.4	122
Dairy & Liquids
Milk (Whole)	1¾ cups	27.5	82.4	245
Heavy Cream	1¾ cups	28.3	84.9	238
Water	1¾ cups	28.5	85.4	237
Baking & Thickeners
Cocoa Powder	4⅔ cups	67.2	201.6	100
Cornstarch	3⅜ cups	52.5	157.5	128
Baking Powder	1⅞ cups	29.2	87.5	230

Common questions

Frequently Asked Questions

How many cups is 420 grams of flour?+

420 grams of all-purpose flour is 3.36 cups (3⅜ cups). The calculation is 420 ÷ 125 = 3.36. In practice, measure 3 cups + 5 tablespoons + 2 teaspoons using the spoon-and-level method. This is enough flour for a standard double-layer cake or a large batch of about 48 cookies.

How many cups is 420 grams of sugar?+

420 grams of granulated sugar is 2.10 cups (2⅛ cups) — 2 cups + 1 tablespoon + 2 teaspoons. Brown sugar (packed) at 220g/cup: 420g = 1.91 cups (1⅞ cups). Powdered sugar at 120g/cup: 420g = 3.50 cups (3½ cups exactly).

How many cups is 420 grams of butter?+

420 grams of butter is approximately 1.850 cups (1⅞ cups) — 29 tablespoons + 2 teaspoons. In US butter sticks (113g each), 420g = 3.72 sticks. Use 3¾ sticks (3 full sticks + 12 tablespoons from a fourth stick) as the closest practical measure.

How many cups is 420 grams of honey?+

420 grams of honey is approximately 1.235 cups (1¼ cups) — 1 cup + 3 tablespoons + 2 teaspoons. Honey is one of the densest kitchen ingredients at 340g per cup, which is why 420g — much more than a cup of flour — fills only 1¼ cups. Always tare a bowl and pour honey directly to avoid sticky measuring cups.

Is 420 grams the same in a US cup vs a metric cup?+

No. The US customary cup is 236.6ml while the metric cup (Australia, Canada) is 250ml. For 420g of flour: US cup = 3.36 cups, metric cup = 3.18 cups. For sugar: US = 2.10 cups, metric = 1.99 cups. The difference adds up with large quantities like 420g, so always confirm which cup standard your recipe uses.

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