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Bread flour

One US cup of bread flour is estimated at 120 grams using our reference. How you fill the cup matters.

Reference ingredient

120 g per US cup

Bread flour · Dry flour, spooned and levelled

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Ingredient

Dry flour, spooned and levelled

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50 grams of bread flour is about

0.42

US cups

Approximate recipe equivalent for Bread flour. Ingredient preparation and measuring technique affect the result.

Reference: 120 g per 236.5882 ml US reference cup. More precision: 0.4167 US cups.

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Volume depends on the ingredient and the measuring method. Results crossing weight and volume are recipe estimates.

Bread flour conversions at a glance

Reference: 120 grams per US cup, dry flour, spooned and levelled. Values are approximate.

Grams of bread flour to US cups
Bread flour weight	US cups	Kitchen measure
30 g	0.25	¼ cup
50 g	0.42	a little over ⅓ cup
100 g	0.83	a little over ¾ cup
120 g	1	1 cup
150 g	1.25	1 ¼ cups
200 g	1.67	1 ⅔ cups
250 g	2.08	a little under 2 ⅛ cups

Cups of bread flour to grams
Cups	US cup (236.59 ml) → g	Metric cup (250 ml) → g
0.25 cups	30	31.7
0.3333 cups	40	42.27
0.5 cups	60	63.4
0.6667 cups	80	84.54
0.75 cups	90	95.1
1 cup	120	126.8
2 cups	240	253.61

Spoons of bread flour to grams by system
Spoon	US (14.79 / 4.93 ml)	Metric (15 / 5 ml)	Australian (20 / 5 ml)
1 tbsp	7.5	7.61	10.14
1 tsp	2.5	2.54	2.54

Bread flour amounts people look up

The measures most often searched for this ingredient, converted with the reference above.

Searched bread flour amounts in grams, US cups and ounces (approximate recipe equivalents)
Amount	Grams	US cups	Ounces (weight)
1 US cup	120 g	1 US cups	4.2329 oz
3.5 US cups	420 g	3.5 US cups	14.8151 oz
4 US cups	480 g	4 US cups	16.9315 oz
4.5 US cups	540 g	4.5 US cups	19.0479 oz
5 US cups	600 g	5 US cups	21.1644 oz
50 grams	50 g	0.4167 US cups	1.7637 oz
200 grams	200 g	1.6667 US cups	7.0548 oz
300 grams	300 g	2.5 US cups	10.5822 oz
400 grams	400 g	3.3333 US cups	14.1096 oz
500 grams	500 g	4.1667 US cups	17.637 oz

A bowl of flour with a measuring spoon and a jug of milk

Your recipe. Your measuring method.

Spoon, level, then cook.

A light, level cup gives a different weight from a firmly packed scoop. A kitchen scale helps keep the amount repeatable.

How to measure ingredients

How to convert bread flour

Our reference is 120 grams per US reference cup of bread flour, dry flour, spooned and levelled. That works out to about 0.5072 grams per millilitre, so cups = grams ÷ 120 and grams = cups × 120 in US customary measures.

For metric and Australian recipes the cup holds 250 ml, so one cup of bread flour is about 126.8 grams. Australian tablespoons hold 20 ml rather than 15 ml, which the calculator handles when you pick that system.

Preparation changes the weight

The reference describes bread flour as: dry flour, spooned and levelled. A different form, such as sifted, packed, melted, chopped or cooked, can hold a different weight in the same cup and needs its own reference. When a recipe gives a gram amount, weigh that amount instead of converting.

Brand, moisture and how firmly the cup is filled all move the practical result. Treat the numbers here as recipe equivalents, not laboratory densities.

Where the number comes from

The reference comes from King Arthur Baking ingredient weight chart, which lists 1 cup as 120 grams. Published recipe weight, normalised to one reference cup. This site assigns the published cup weight to its adopted US reference cup of 236.5882365 ml; the source itself does not define an exact millilitre cup volume. Checked September 25, 2026.

A few useful answers

Kitchen questions, answered.

How many grams are in a cup of bread flour?

About 120 grams per US customary cup (dry flour, spooned and levelled), or about 126.8 grams per 250 ml metric cup, using our reference.

How many cups are 100 grams of bread flour?

About 0.83 US cups. Use the calculator for any other amount or cup system.

Can I substitute a similar ingredient?

A measurement conversion does not establish a recipe substitution. Two ingredients can weigh the same per cup and still behave differently in a recipe; follow the recipe author's substitution guidance.

Sources behind the numbers

Sources checked September 25, 2026. Ingredient values are recipe equivalents, not laboratory densities.