400 Grams of Flour to Cups

400 grams of all-purpose flour is 3.33 US cups, based on 120 grams per cup. The result assumes flour that is fluffed, spooned into the cup and leveled.

The decimal is about 3 1/3 cup and approximately 53.3 US tablespoons. Weighing 400 grams is still the most repeatable method.

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Grams to Cups Converter

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Grams to Cups Converter

Results use the documented ingredient state and one US customary cup.

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Rounded to two decimal places for cups and the nearest gram for reverse conversions.

400 Grams of Flour to Cups by Type

Flour type changes the volume. The table uses published King Arthur Baking reference weights and keeps the all-purpose answer first.

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Flour type	Grams in 1 cup	400 grams in cups	Measurement state
All-purpose flour	120 g	3.33 cups	fluffed, spooned and leveled
Bread flour	120 g	3.33 cups	King Arthur bread flour reference
Pizza flour	116 g	3.45 cups	00 pizza flour reference
Pastry flour	106 g	3.77 cups	lightly filled
Spelt flour	99 g	4.04 cups	lightly filled
Almond flour	96 g	4.17 cups	not almond meal

Useful for medium bread dough

Four hundred grams of flour is about 3.33 US cups. The closest familiar measure is three cups plus one-third cup. Dough hydration responds directly to flour weight, so weighing is more dependable than building this amount from several cups.

For all-purpose flour, the calculation is 400 ÷ 120 = 3.33 cups. If you use cups, fill each measure the same way from start to finish.

Do not change to a lighter flour type just to reach a simpler cup fraction. Select the flour named in the recipe because protein level and behavior matter as much as volume.

How to Measure This Amount

Fluff the flour. Stir it gently to loosen compacted areas.
Spoon it into the cup. Do not use the cup as a scoop.
Level without tapping. Sweep a straight edge across the top.
Keep the remainder accurate. Use a smaller measure or weigh the full 400 grams.

400 g ÷ 120 g per cup = 3.33 cups

Planning a 400 gram dough

Four hundred grams of all-purpose flour is about 3.33 US cups. That is close to three cups plus one-third cup, a useful planning estimate when choosing a bowl or checking whether a mixer has enough capacity.

Bread formulas often express water as a percentage of flour weight. At 70 percent hydration, 400 grams of flour pairs with 280 grams of water before other adjustments. That relationship is much easier to preserve in grams than in cups.

If the dough needs bench flour, keep it separate from the measured 400 grams. Record any additional amount that is worked into the dough so a successful result can be repeated rather than guessed next time.

Method and source

How this conversion was checked

This page uses 120 grams per US cup for unsifted, fluffed, spooned and leveled. Do not pack flour into the cup.

Primary reference: King Arthur Baking Ingredient Weight Chart

Cup standard: NIST US customary cup reference

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400 Grams of Flour FAQ

How many cups is 400 grams of flour?

400 grams of all-purpose flour is 3.33 US cups using 120 grams per cup and the fluff, spoon and level method.

Is 400g flour exactly about 3 1/3 cup?

The calculated decimal is 3.33 cups. About 3 1/3 cup is a practical measuring reference, but the original 400 gram weight is more precise.

Does bread flour use the same conversion?

This page uses 120 grams per cup for both King Arthur all-purpose flour and its bread flour reference. Other brands or recipe publishers may set a different house standard.

Should flour be scooped from the bag?

No. Fluff the flour, spoon it into the dry cup and level the top. Scooping directly can compress extra flour into the cup.

Other Flour Amounts

Use the same 120 gram all-purpose flour standard across nearby pages.

Editorial review

Reviewed for clarity and consistency

Written and reviewed by William Leo. Ingredient values are checked against the methodology and sources listed on this page.

Last reviewed
August 23, 2026