1 cup of All-Purpose Flour in grams

1 cup of all-purpose flour = 125 grams. That's based on a 125 g per cup baseline. All-Purpose Flour is also called plain flour in some recipes. Because all-purpose flour can shift with scoop and compression, weighing is usually more accurate than measuring by volume.

Reviewed by CupOrGram Editorial TeamData methodology: NIST-derived density references + recipe testing notesMethodology
Answer
125 grams
Based on all-purpose flour density of 0.529 g/ml
Source: NIST-DB-72
Shop scales

Affiliate link. No extra cost to you.

Need a substitute for All-Purpose Flour?

We have 3 tested substitutions with exact ratios.

Find a substitute →

Keep going with All-Purpose Flour

Ingredient Guide

See all All-Purpose Flour conversions

Open the full ingredient guide for density notes, common cup weights, and the most-used conversion paths.

All-Purpose Flour ingredient guide →
Substitute Path

All-Purpose Flour substitutions

Start with Cake Flour + Cornstarch using 1:1 (sub 2 tbsp per cup with cornstarch), then see the full substitute hub for more tested options.

Open All-Purpose Flour substitutions →

Quick Reference Table

cupsgrams
1/4 cups31.3 grams
1/3 cups41.3 grams
1/2 cups62.6 grams
1 cups125 grams
1.50 cups188 grams
2 cups250 grams
3 cups375 grams
4 cups501 grams

Custom Amount

Quick Convert

Ingredient-specific, density-based conversions for baking

125
grams
Ingredient-specific · density-based
Density-specific references, not generic cup charts · NIST-DB-72

Why this conversion varies

All-Purpose Flour is light and compressible, so volume measurements can move more than people expect.

  • Grind size changes how tightly the flour settles in a cup.
  • Scoop method (spoon-and-level vs direct scoop) changes cup weight.
  • This page uses a consistent 125 g per cup baseline for repeatable conversions.

Why this conversion matters

All-Purpose Flour is sensitive to scoop and compression differences. Even small volume errors can change batter thickness and crumb structure. Converting with a fixed baseline helps keep hydration and texture more consistent.

Practical baking use

The most common baking flour, made from a blend of hard and soft wheat. Use this conversion when scaling muffins, pancakes, cookies, and quick breads that use all-purpose flour.

  • For texture-sensitive bakes, measure by weight for final adjustments.
  • When switching brands, run a small test batch before scaling.

FAQ

How much is 1 cup of all-purpose flour in grams?

1 cup of all-purpose flour is 125 grams using a 125 g per cup baseline.

Why can all-purpose flour cup measurements vary so much?

All-Purpose Flour is light and compressible, so volume measurements can move more than people expect. In practice, scoop and compression can shift results between kitchens.

Is it better to weigh all-purpose flour for baking?

Usually yes. Weight-based measuring reduces shifts from scoop and compression, so your results are more repeatable.

Related links for All-Purpose Flour

Recipe Context for All-Purpose Flour

For cakes: use weight to avoid dense crumb from over-measuring.

For bread: control hydration by weighing flour and liquids together.

For cookies: 10-20g extra flour can reduce spread noticeably.

Common Pitfalls

  • Switching brands without re-checking weight can change texture and bake time.
  • Using volume-only measurements for dense ingredients can overshoot recipe targets.
  • Scooping directly from the bag compresses flour and can make bakes dry.

Brand Variance Example

Baseline on this page: 1 cup all-purpose flour = 125g. Real-world range can shift by about 12% because flours and grains compact differently based on scoop method, humidity, and grind fineness.

Example for 2 cups: baseline 250g, common range 220g-280g. If your bake is texture-sensitive, start with the lower bound and adjust after a test batch.

Other conversions for All-Purpose Flour

Explore More