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300g All-Purpose Flour = 2 ½ cups

300 grams of all-purpose flour equals 2 ½ cups (2.50 US Customary cups, 2.37 Metric 250 mL cups, 591.5 mL, 40 tablespoons, or 10.58 oz) when measured spooned & leveled at a verified density of 120g per US Customary cup.

Exact decimal volume: 2.50 US Customary Cups • 2.37 Metric Cups (250 mL) • 40 tbsp • 10.58 oz

Batch
Measuring density
Converted Measure
300 g All-Purpose Flour (spooned & leveled) =
2 ½ US Cups
Physical scoop breakdown2.50 cups
1 cup
1 cup
1/2 cup
Edit either side to reverseAP Flour chart →
Grams
300 g
Ounces
10.58 oz
US Cups
2 ½ cups
Metric (250mL)
2.37 c
Tablespoons
40 tbsp
Milliliters
591.5 mL

Kitchen note: Test-kitchen baseline uses spooned & leveled (120g/cup). Switching to dip-and-sweep scooped (142g/cup) changes each cup by 22g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around 300g All-Purpose Flour

Batch scaling conversion table around 300g of All-Purpose Flour (0.5× to 3× recipe batches in grams, ounces, US cups, and milliliters)
Batch Scale Weight (g / oz) US Cups & Spoons Metric (mL)
Half Batch (0.5×) 150g (5.29 oz) 1 ¼ cups 295.7 mL
Standard (1×) 300g (10.58 oz) 2 ½ cups 591.5 mL
1.5× Batch 450g (15.87 oz) 3 ¾ cups 887.2 mL
Double Batch (2×) 600g (21.16 oz) 5 cups 1182.9 mL
Triple Batch (3×) 900g (31.75 oz) 7 ½ cups 1774.4 mL

Measuring 300g of All-Purpose Flour in the Kitchen

Because 1 US Customary Cup (236.6 mL) of all-purpose flour weighs 120g when measured spooned & leveled, 300 Grams (300g) translates to 2.50 US cups (2 ½ cups). By contrast, using the dip-and-sweep scooped measure (142g/cup — a 22g per-cup shift), 300g occupies 2 ⅛ cups (2.11 cups).

Without a kitchen scale, measure 2 ½ cups (40 tablespoons total) using spooned & leveled technique. Fluff flour with a fork, spoon gently into the measuring cup until mounded, and sweep level with a straight knife. Never pack or tap the cup, which compresses flour up to 142g.

Source note: King Arthur standard (120g/cup spooned) & USDA FDC #169761

Frequently Asked Questions

How many cups is 300 grams of all-purpose flour? ▾

300 grams of all-purpose flour (spooned & leveled, 120g per US cup) equals 2 ½ cups (2.50 US Customary Cups, 2.37 Metric 250 mL cups, or 40 tablespoons).

Why does 1 cup of all-purpose flour vary from 120g to 145g? ▾

Dipping the cup straight into the bag compacts the tiny particles, packing up to 25% more flour than gently spooning and leveling.

Can I swap all-purpose flour for bread flour by weight? ▾

Yes, substitute 100g of bread flour for 100g of AP flour, but note bread flour absorbs slightly more water due to higher protein.