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Cups to Grams Converter: Flour, Sugar, Butter and More

Convert cups to grams for flour, sugar, butter, milk, oats and more: 1 cup of all-purpose flour is 120 g, 1 cup of sugar 200 g. Free converter and chart.

Cups to Grams Converter

17 baking and cooking ingredients, both directions

Ingredient

Amount

Unit

120grams
16tablespoons
4.2ounces

All-purpose flour: common amounts

¼ cup30 g

⅓ cup40 g

½ cup60 g

⅔ cup80 g

¾ cup90 g

1 cup120 g

US cups (236.6 ml). Flour and dry ingredients spooned into the cup and levelled; brown sugar packed. Weighing is always the most accurate.

American recipes measure by the cup; most of the world weighs in grams. A cup measures volume, so a cup of flour and a cup of sugar weigh quite different amounts. Pick the ingredient below and the converter does the arithmetic.

Quick answer: 1 cup of all-purpose flour = 120 g. 1 cup of granulated sugar = 200 g. 1 cup of butter = 227 g. 1 cup of water = 237 g.

Cups to grams chart

Grams for common ingredients in standard US measuring cups. Dry ingredients are spooned into the cup and levelled; brown sugar is packed.

Ingredient	1 cup	¾ cup	½ cup	⅓ cup	¼ cup
All-purpose flour	120 g	90 g	60 g	40 g	30 g
Bread flour	120 g	90 g	60 g	40 g	30 g
Whole wheat flour	113 g	85 g	57 g	38 g	28 g
Granulated sugar	200 g	150 g	100 g	67 g	50 g
Brown sugar (packed)	213 g	160 g	107 g	71 g	53 g
Powdered sugar	120 g	90 g	60 g	40 g	30 g
Butter	227 g	170 g	114 g	76 g	57 g
Water	237 g	178 g	119 g	79 g	59 g
Milk	245 g	184 g	123 g	82 g	61 g
Heavy cream	240 g	180 g	120 g	80 g	60 g
Plain yogurt	245 g	184 g	123 g	82 g	61 g
Vegetable oil	218 g	164 g	109 g	73 g	55 g
Honey	340 g	255 g	170 g	113 g	85 g
Rolled oats	90 g	68 g	45 g	30 g	23 g
White rice (uncooked)	185 g	139 g	93 g	62 g	46 g
Cocoa powder (unsweetened)	85 g	64 g	43 g	28 g	21 g
Chocolate chips	170 g	128 g	85 g	57 g	43 g

Why a cup of flour and a cup of sugar weigh different amounts

A cup holds the same volume of anything, 236.6 ml, but ingredients pack differently. Flour is light and full of air, so a cup weighs about 120 g; sugar crystals sit closer together, so a cup weighs about 200 g; honey is dense and weighs 340 g a cup. That is why a single "cups to grams" number doesn't exist: it always depends on the ingredient.

How to measure flour by the cup

How you fill the cup changes the weight more than anything else. Scooping the cup straight into the bag packs the flour down and can give you noticeably more than 120 g, enough to make cakes dry and cookies tough. For the weights in this chart:

Stir the flour to loosen it.
Spoon it into a dry measuring cup until it mounds over the top.
Level it with the back of a knife, without pressing.

Better still, use a kitchen scale: it is faster and gives the same result every time.

Grams to cups

Following a metric recipe with American cups? Here are common amounts of flour and sugar:

Grams	All-purpose flour	Granulated sugar
50 g	¼ cup + 2⅔ tbsp	¼ cup
100 g	¾ cup + 1⅓ tbsp	½ cup
125 g	1 cup + ⅔ tbsp	½ cup + 2 tbsp
150 g	1¼ cups	¾ cup
200 g	1½ cups + 2⅔ tbsp	1 cup
250 g	2 cups + 1⅓ tbsp	1¼ cups
300 g	2½ cups	1½ cups
500 g	4 cups + 2⅔ tbsp	2½ cups

Tablespoons and teaspoons to grams

A tablespoon is 1/16 cup and a teaspoon 1/48 cup, so: a tablespoon of flour weighs about 7.5 g, sugar 12.5 g, butter 14 g and honey 21 g. A teaspoon of sugar is about 4 g. For leaveners and salt, which recipes use in small amounts, measure with spoons rather than converting.

Cups to grams FAQ

How many grams are in a cup of flour?

About 120 grams of all-purpose or bread flour, spooned and levelled. Whole wheat flour is a little lighter, about 113 grams.

How many grams are in a cup of sugar?

Granulated sugar is about 200 grams a cup, packed brown sugar about 213 grams, and powdered sugar about 120 grams.

How many grams is 1 cup of butter?

227 grams, which is two US sticks. The butter conversion calculator covers sticks, tablespoons and ounces too.

How many grams are in a cup of water?

About 237 grams, since a cup is 236.6 ml and a millilitre of water weighs a gram.

How many cups is 250 g of flour?

About 2 cups + 1⅓ tbsp of all-purpose flour.

How many cups is 100 g of sugar?

Half a cup of granulated sugar.

Baking from a European recipe? The oven temperature converter turns °C and gas marks into °F.

By Menu Moments · Updated November 10, 2026

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