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⅓ US Cup Oat Flour = 30.7g

⅓ US Cup of oat flour weighs 30.7 grams (1.08 ounces or 0.07 pounds; 78.9 mL or 5.33 tablespoons in volume) when measured spooned & leveled at a verified bulk density of 92g per 236.6 mL US Customary cup.

Imperial weight: 1.08 oz (0.07 lb) • Volume: 78.9 mL (5.33 tbsp)

Batch
Measuring density
Converted Measure
0.33 US cup Oat Flour (spooned & leveled) =
30.7 g
Physical scoop breakdown0.33 cups
1/3 cup
Edit either side to reverseOat Flour chart →
Grams
30.7 g
Ounces
1.08 oz
US Cups
⅓ cup
Metric (250mL)
0.32 c
Tablespoons
5.33 tbsp
Milliliters
78.9 mL

Kitchen note: Test-kitchen baseline uses spooned & leveled (92g/cup). Switching to scooped from bag (104g/cup) changes each cup by 12g—use the packing toggle on the scale bench to match your recipe.

Batch Scaling Around ⅓ US Cup Oat Flour

Batch scaling conversion table around ⅓ US Cup of Oat 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×) 15.3g (0.54 oz) 2 tbsp + 2 tsp 39.4 mL
Standard (1×) 30.7g (1.08 oz) ⅓ cup 78.9 mL
1.5× Batch 46g (1.62 oz) ½ cup 118.3 mL
Double Batch (2×) 61.3g (2.16 oz) ⅔ cup 157.7 mL
Triple Batch (3×) 92g (3.25 oz) 1 cup 236.6 mL

Measuring ⅓ US Cup of Oat Flour in the Kitchen

Measured spooned & leveled at a verified bulk density of 92g per US cup, ⅓ US cup of oat flour weighs 30.7 grams (1.08 ounces). Measured using the scooped from bag method (104g/cup), that same ⅓ cup holds 34.7g — a 4g difference in your mixing bowl.

Spoon lightly and level. Oat flour is exceptionally light and fluffy; shaking the cup causes severe settling.

Source note: King Arthur Baking standard (92g/cup) & USDA FDC #169747

Frequently Asked Questions

How many grams is ⅓ cup of oat flour? ▾

⅓ US Cup of oat flour measured spooned & leveled weighs 30.7 grams (1.08 ounces).

Can I make oat flour at home by blending rolled oats? ▾

Yes, blend old-fashioned rolled oats until powdery; weigh out 92 grams per cup needed in your recipe.

Is oat flour completely gluten-free? ▾

Pure oats are gluten-free, but check for certified gluten-free processing to avoid wheat cross-contamination.