Cups to grams: bread flour

A US cup of bread flour weighs roughly 127 grams, or 4.48 ounces. Weighing is always more repeatable than scooping, which is why professional recipes give grams.

Amount in US cups

Or a weight to convert back

Weight

127.0g

= Exact bread flour cups to grams Show in

Weight in ounces: 4.480
Cups in the weight you entered: 0.787
Tablespoons in that weight: 12.60
Tablespoons: 16.00
Teaspoons: 48.0
Volume: 236.6
Grams per cup used: 127.0
Implied bulk density: 0.5368 g/mL

Show the working

Amount in US cups = 1
Or a weight to convert back = 100
Grams per cup used = 127 = 127
Weight = 1 * 127 = 127
Weight in ounces = 127 / 28.349523125 = 4.479 79
Tablespoons = 1 * 16 = 16
Teaspoons = 1 * 48 = 48
Volume = 1 * 236.5882365 = 236.588
Cups in the weight you entered = 127 > 0 ? 100 / 127 : 0 = 0.787 402
Tablespoons in that weight = 0.787 402 * 16 = 12.5984
Implied bulk density = 127 / 236.5882365 = 0.536 798

Values are shown to six significant figures here; the arithmetic itself runs on exact fractions and is only rounded where a number is printed.

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The formula

grams = cups x grams per cup
1 US cup = 16 tablespoons = 48 teaspoons = 236.588 236 5 mL exactly
1 ounce = 28.349 523 125 g exactly

Cup figures assume the spoon-and-level convention: fluff the ingredient, spoon it into the cup and sweep the top flat. Dipping the cup straight into the bag packs in up to 20% more.

The volume conversions on this page are exact by definition. Only the grams-per-cup figure is a measured convention, and it is stated above so you can substitute your own.

Common measures of bread flour

Measure	Grams	Ounces
1 teaspoon	2.65	0.093
1 tablespoon	7.94	0.280
1/4 cup	31.8	1.12
1/3 cup	42.3	1.49
1/2 cup	63.5	2.24
1 cup	127.0	4.48
2 cups	254.0	8.96

Rounded for the kitchen. The calculator above keeps full precision.

Frequently asked

How many grams are in a cup of bread flour?

About 127 g, using the spoon-and-level convention for a US cup.

How many grams are in a tablespoon of bread flour?

About 7.94 g, since a tablespoon is exactly one sixteenth of a US cup.

Is a US cup the same as a metric cup?

No. A US cup is 236.588 mL, a metric cup is 250 mL and an imperial cup is 284.13 mL. A recipe that says "cup" without qualification almost always means the US one.

Where the numbers come from

Volume relationships follow the US customary definitions; the grams-per-cup figure is the widely published spoon-and-level convention for this ingredient.