How many grams are in 1 cup of rye flour?

One cup of medium rye flour weighs about 102 grams. Whole rye flour or pumpernickel meal, which is coarser and stone-ground, weighs more per cup at about 128 grams because the larger bran particles pack differently.

Why is rye flour lighter than all-purpose flour by volume?

Medium rye flour has less gluten-forming protein than wheat flour and a finer, drier texture that settles more loosely in a measuring cup. All-purpose flour weighs about 120 grams per cup, so a cup of medium rye flour is noticeably lighter.

What is the difference between medium rye flour and whole/pumpernickel rye?

Medium rye flour has had some of the bran and germ sifted out, similar to how all-purpose flour compares to whole wheat. Whole rye flour, often labeled pumpernickel flour, keeps the entire rye kernel ground coarsely, which packs heavier per cup.

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

Yes. These gram figures assume 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 rye flour weight not match the package label?

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

Is it better to measure rye flour by weight or by cups?

By weight. Scooping technique changes how much rye flour fits in a cup by a meaningful margin, while a gram measurement stays consistent every time, which matters most for hydration-sensitive rye doughs that are already stickier than wheat doughs.

Rye Flour Cups to Grams

Convert rye flour between US cups and grams using rye flour's real density, with a toggle for medium rye versus whole/pumpernickel rye.

Convert Rye Flour

Rye Flour Type

Amount in Cups

Quick:

Spoon-and-level method. Brands vary by a few grams per cup.

Result

Enter an amount above and click Convert.

Quick Reference Table

Grams per cup of medium rye flour, spoon-and-level method.

Amount	Grams

Copied!

Summary

Rye flour is lower in gluten-forming protein than wheat flour and its bran particles pack differently in a measuring cup, so a cup of rye flour does not weigh the same as a cup of all-purpose flour. This tool converts between US cups and grams using rye flour's own density, in either direction, and separates medium rye flour from coarser whole/pumpernickel rye since the two pack at noticeably different weights.

How it works

Choose the rye flour type: Medium Rye Flour or Whole Rye / Pumpernickel Flour.
Pick a direction: Cups to Grams, or Grams to Cups if you already have a gram figure.
Type the amount, or click a quick-fraction button for common cup sizes.
Click Convert to see the result using that rye flour type's density.
Use the reference table below for common amounts without typing anything.
Copy the result with one click to paste into your notes or recipe.

Use cases

Scale a rye bread or pumpernickel recipe that lists rye flour in cups onto a kitchen scale.
Convert grams from a European or Scandinavian rye bread recipe into US cup measurements.
Check how many grams are in 1/4 cup of rye flour before adding it to a sourdough rye starter.
Avoid over-packing rye flour, which throws off hydration ratios in dense rye doughs.
Compare a rye flour measurement against an all-purpose or bread flour recipe you are adapting.
Tell medium rye flour and coarser whole/pumpernickel rye apart before weighing.
Weigh out rye flour for baker percentage calculations in a rye or mixed-grain formula.

Frequently Asked Questions

Last updated: 2026-09-09 · Reviewed by Nham Vu