How many grams are in 1 cup of self-rising flour?

One cup of self-rising flour weighs about 125 grams. This is nearly identical to plain all-purpose flour because the baking powder and salt mixed in add only a small amount of extra weight.

Is self-rising flour heavier or lighter than all-purpose flour?

They are close enough to treat as the same for most recipes. Self-rising flour is milled from a similar soft wheat base as all-purpose flour, so the added baking powder and salt shift the weight by only a gram or two per cup.

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

Yes. The 125 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 self-rising flour weight not match the package label?

Brands mill and pack self-rising flour to slightly different finenesses and blend in slightly different amounts of baking powder and salt, so package-listed weights can differ from this chart by a few grams per cup.

Can I make self-rising flour from all-purpose flour for this conversion?

Yes. Mixing 1 cup of all-purpose flour with 1.5 teaspoons baking powder and 0.25 teaspoon salt gives a close substitute, and the resulting weight per cup stays close enough to use this same conversion.

How many grams is 1/3 cup of self-rising flour?

One-third cup of self-rising flour is about 42 grams, based on the 125 g per cup density used throughout this tool.

Self Rising Flour Cups to Grams

Convert self-rising 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 Self-Rising Flour

Amount in Cups

Quick:

Based on 125 g per cup for self-rising flour, spoon-and-level method. Updates live as you type. Brands vary by a few grams.

Result

Enter an amount above to see the live conversion.

Quick Reference Table

Grams per cup of self-rising flour, spoon-and-level method.

Amount	Grams

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Summary

Self-rising flour is soft wheat flour pre-mixed with baking powder and salt, and it packs into a measuring cup at almost the same density as plain all-purpose flour since the added leavening barely changes the weight. This tool converts between US cups and grams using that density in either direction, and updates the result live as you type, with a reference chart for the amounts that show up most often in biscuit, scone, and quick bread recipes.

How it works

Choose Cups → Grams or Grams → Cups depending on what you already have.
Type the amount in the input field.
The result updates automatically as you type, no button needed.
Use the quick fraction buttons for common cup amounts.
Copy the result with one click to paste into your notes or recipe.

Use cases

Scale a biscuit or scone recipe that lists self-rising flour in cups onto a kitchen scale.
Convert grams from a UK or metric recipe into US cup measurements.
Check how many grams are in 1/2 cup of self-rising flour before mixing a quick bread.
Avoid over-packing self-rising flour, which throws off the leavening-to-flour ratio.
Compare a self-rising flour measurement against an all-purpose flour recipe you are adapting.
Weigh out self-rising flour for consistent results across repeated baking sessions.

Frequently Asked Questions

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