How many grams is 1 cup of flour?

125 g of all-purpose flour spooned into the cup and levelled off, which is what most modern recipes mean by a cup of flour. Scooping the cup through the bag packs it to 140 g. Both are real published conventions and they differ by a visibly different loaf, which is why this tool lists them separately instead of averaging them into one number nobody uses.

How many grams is 1/2 cup?

It depends entirely on what is in the cup, because a cup measures volume and a gram measures mass. Half a cup of spooned all-purpose flour is 62.5 g, half a cup of granulated sugar is 100 g, and half a cup of butter is 113.5 g. Pick the ingredient above and the answer changes with it; the density used is printed under every result with its source.

How many grams is 2 cups of flour?

250 g spooned, or 280 g scooped. Every row of the table below is computed by the same conversion the tool runs, so the table and the answer on screen can never disagree with each other.

Why do other sites give a different number for a cup of flour?

Because they are quoting different conventions without saying so. 120, 125, 128 and 140 g all appear on the first page of results for the same question, and each is a real published figure for a particular way of filling the cup. This page uses 125 g for spooned and 140 g for scooped, says which one each column rests on, and prints the density beside every result so there is no hidden average.

Is a metric cup different?

Yes. A metric cup is 250 mL against the US cup's 236.588 mL, so a metric cup of spooned all-purpose flour holds 132.1 g rather than 125 g. There is a switch for it above, and it moves the tablespoon to 15 mL and the teaspoon to 5 mL at the same time. Everything on this page is the US cup.

Which flour should I pick?

All-purpose spooned is the default and the safest reading of an unqualified recipe. The list also has bread flour at 127 g a cup, cake flour at 114 g, pastry and whole wheat at 120 g, self-rising at 125 g, almond at 96 g, coconut at 112 g and rye at 102 g, each with the source of its figure.

Cups to Grams

The converter above opens pointing the way you asked: cups in, grams out, starting on 1 cup of all-purpose flour spooned into the cup at 125 g a cup. Flour is where the method matters most. A cup scooped straight through the bag packs to 140 g, 12 percent more, so both conventions are separate entries here and the table below gives every common cup amount under each of them.

From

To125

Ingredient

Cup size

Round

All-purpose flour, spooned: 125 g in one US cup, a density of 0.5283 g per mL. Source: Spooned and levelled convention.

Spooned into the cup and levelled off. This is what most modern recipes mean.

1 cup of all-purpose flour, spooned, in every unit

Tablespoonstbsp
16
Teaspoonstsp
48
MillilitresmL
236.6
Fluid ounces (US)fl oz
8
Gramsg
125
Ounces (weight)oz
4.409
Kilogramskg
0.125
Poundslb
0.2756

Common ingredients

What one US cup of each weighs, and what your amount comes to in each. Pick a row to convert it.

Grams per cup	1 cup in g	Source
236.6	236.6	1 g/mL
125	125	Spooned
140	140	Scooped
127	127	Spooned
114	114	Spooned
120	120	Spooned
200	200	USDA
220	220	Packed
120	120	Spooned
227	227	USDA
245	245	USDA
238	238	USDA
218	218	USDA
340	340	USDA
322	322	USDA
85	85	Spooned
128	128	USDA
90	90	Spooned
185	185	USDA
170	170	USDA

There is no single answer to “how many grams in a cup”. A cup measures volume and a gram measures mass, so the two only meet through a density, and the density belongs to the ingredient. A cup of cocoa powder is 85 g, a cup of honey is 340 g, and both are correct. That is why the ingredient is a required choice here rather than an optional refinement, and why the number used is printed under every result with the source it came from. Accuracy. Cups measure volume and grams measure mass, so the answer depends on the ingredient; the density used is shown beside every result with its source. Flour differs by about 12 percent between spooned and scooped, and both are listed.

Cups of flour to grams, both conventions

Computed with the tool's own figures: all-purpose flour spooned and levelled at 125 g per US cup of 236.588 mL, and the same flour scooped through the bag at 140 g a cup. Scooped is 12 percent heavier throughout, so a recipe written for one and measured by the other is out by that much before anything else goes wrong.

Cups	Spooned, 125 g a cup	Scooped, 140 g a cup
1/4 cup	31.25 g	35 g
1/3 cup	41.67 g	46.67 g
1/2 cup	62.5 g	70 g
2/3 cup	83.33 g	93.33 g
3/4 cup	93.75 g	105 g
1 cup	125 g	140 g
1 1/4 cups	156.3 g	175 g
1 1/3 cups	166.7 g	186.7 g
1 1/2 cups	187.5 g	210 g
1 3/4 cups	218.8 g	245 g
2 cups	250 g	280 g
2 1/2 cups	312.5 g	350 g
3 cups	375 g	420 g

Common questions

How many grams is 1 cup of flour?: 125 g of all-purpose flour spooned into the cup and levelled off, which is what most modern recipes mean by a cup of flour. Scooping the cup through the bag packs it to 140 g. Both are real published conventions and they differ by a visibly different loaf, which is why this tool lists them separately instead of averaging them into one number nobody uses.
How many grams is 1/2 cup?: It depends entirely on what is in the cup, because a cup measures volume and a gram measures mass. Half a cup of spooned all-purpose flour is 62.5 g, half a cup of granulated sugar is 100 g, and half a cup of butter is 113.5 g. Pick the ingredient above and the answer changes with it; the density used is printed under every result with its source.
How many grams is 2 cups of flour?: 250 g spooned, or 280 g scooped. Every row of the table below is computed by the same conversion the tool runs, so the table and the answer on screen can never disagree with each other.
Why do other sites give a different number for a cup of flour?: Because they are quoting different conventions without saying so. 120, 125, 128 and 140 g all appear on the first page of results for the same question, and each is a real published figure for a particular way of filling the cup. This page uses 125 g for spooned and 140 g for scooped, says which one each column rests on, and prints the density beside every result so there is no hidden average.
Is a metric cup different?: Yes. A metric cup is 250 mL against the US cup's 236.588 mL, so a metric cup of spooned all-purpose flour holds 132.1 g rather than 125 g. There is a switch for it above, and it moves the tablespoon to 15 mL and the teaspoon to 5 mL at the same time. Everything on this page is the US cup.
Which flour should I pick?: All-purpose spooned is the default and the safest reading of an unqualified recipe. The list also has bread flour at 127 g a cup, cake flour at 114 g, pastry and whole wheat at 120 g, self-rising at 125 g, almond at 96 g, coconut at 112 g and rye at 102 g, each with the source of its figure.

Cups measure volume and grams measure mass, so the answer depends on the ingredient; the density used is shown beside every result with its source. Flour differs by about 12 percent between spooned and scooped, and both are listed.