How many grams are in 1 cup of whole wheat flour?

One cup of whole wheat flour weighs about 120 grams. This is lighter than all-purpose flour (about 125 g per cup) because the bran and germ particles in whole wheat flour do not pack as tightly as fine white flour.

Why does whole wheat flour weigh less than all-purpose flour by volume?

Whole wheat flour keeps the coarser bran and germ from the wheat kernel, which creates more air pockets between particles in a measuring cup. All-purpose flour is milled finer and sifted, so it settles more densely for the same volume.

Does the spoon-and-level method matter for this conversion?

Yes. The 120 g per cup figure assumes the spoon-and-level method: spooning flour into the cup and leveling it with a knife, rather than scooping directly from the bag, which compacts the flour and adds extra weight.

Why does my whole wheat flour weight not match the package label?

Brands mill whole wheat flour to different coarsenesses, so package-listed weights can differ from this chart by a few grams per cup. For precise baking, weigh against the specific brand you are using when possible.

Is it better to measure whole wheat flour by weight or by cups?

By weight. Scooping technique changes how much whole wheat flour fits in a cup by a meaningful margin, while a gram measurement stays consistent every time, which matters most in yeasted bread doughs that are sensitive to hydration.

How many grams is 1/3 cup of whole wheat flour?

One-third cup of whole wheat flour is about 40 grams, based on the 120 g per cup density used throughout this tool.

Whole Wheat Flour Cups to Grams

Name: Whole Wheat Flour Cups to Grams
Availability: InStock
Author: Nham Vu

Convert whole wheat flour between US cups and grams using its real density, with quick buttons for 1/4, 1/3, 1/2, 1, and 2 cups.

Convert Whole Wheat Flour

Amount in Cups

Quick:

Based on 120 g per cup for whole wheat flour, spoon-and-level method. Brands vary by a few grams.

Result

Enter an amount above and click Convert.

Quick Reference Table

Grams per cup of whole wheat flour, spoon-and-level method.

Amount	Grams

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Summary

Convert whole wheat flour between US cups and grams using its real density, with quick buttons for 1/4, 1/3, 1/2, 1, and 2 cups.

How it works

Enter an amount in cups, or switch to Grams → Cups if you already have a gram figure.
Type the number in the input field.
Click Convert to see the result using whole wheat flour's density.
Use the quick reference table for common amounts without typing anything.
Copy the result with one click to paste into your notes or recipe.

Use cases

Scale a whole wheat bread or muffin recipe listed in cups onto a kitchen scale.
Convert grams from a European or metric recipe into US cup measurements.
Check how many grams are in 1/4 cup of whole wheat flour before adding it to a batter.
Avoid over-packing whole wheat flour, which makes baked goods dense and dry.
Compare a whole wheat flour measurement against an all-purpose flour recipe you are adapting.
Weigh out whole wheat flour for baker percentage calculations where ratios matter.

Frequently Asked Questions

Last updated: 2026-07-24 · Reviewed by Nham Vu