All-Purpose Flour vs Oat Flour

A side-by-side guide to substituting Oat Flour for All-Purpose Flour (or vice versa).

Quick answer

Use 1.25 cup of Oat Flour for every 1 cup of All-Purpose Flour.

Side-by-side

All-Purpose Flour

Base unit: cup

Read the full guide: All-Purpose Flour

Oat Flour

Conversion: Use 1.25× as much (1.25 cup per 1 cup)

Tags: gluten-free

Notes: Use 1 1/4 cups oat flour per 1 cup AP flour. Adds mild nutty flavor. Works well in cookies, pancakes, and quick breads. May be gluten-free if certified.

Read the full guide: Oat Flour

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When to use Oat Flour instead of All-Purpose Flour

Use 1 1/4 cups oat flour per 1 cup AP flour. Adds mild nutty flavor. Works well in cookies, pancakes, and quick breads. May be gluten-free if certified. The conversion is use 1.25× as much (1.25 cup per 1 cup).

Common questions

Can I substitute Oat Flour for All-Purpose Flour?

Yes — Use 1 1/4 cups oat flour per 1 cup AP flour. Adds mild nutty flavor. Works well in cookies, pancakes, and quick breads. May be gluten-free if certified. Ratio: Use 1.25× as much (1.25 cup per 1 cup).

What's the conversion ratio for All-Purpose Flour to Oat Flour?

Use 1.25× as much (1.25 cup per 1 cup). For other quantities, use the SubSwap calculator.

Are All-Purpose Flour and Oat Flour interchangeable?

They are similar in most uses, but Use 1 1/4 cups oat flour per 1 cup AP flour..

Is Oat Flour a better substitute than other options for All-Purpose Flour?

Oat Flour is one of the options SubSwap lists for All-Purpose Flour. The 'best' choice depends on your recipe — see the full list of All-Purpose Flour substitutes.

Looking for more All-Purpose Flour substitutes beyond Oat Flour?

See all All-Purpose Flour swaps →