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125g Old-Fashioned Rolled Oats = 1 ⅓ cups + 2 ¾ tsp

125 grams of old-fashioned rolled oats equals 1 ⅓ cups + 2 ¾ tsp (1.39 US Customary cups, 1.31 Metric 250 mL cups, 328.6 mL, 22.22 tablespoons, or 4.41 oz) when measured dip and sweep at a verified density of 90g per US Customary cup.

Exact decimal volume: 1.39 US Customary Cups • 1.31 Metric Cups (250 mL) • 22.22 tbsp • 4.41 oz

Batch
Measuring density
Standard: Dip and sweep90g / cup
Converted Measure
125 g Old-Fashioned Rolled Oats (Dip and sweep) =
1 ⅓ US Cups + 2 ¾ tsp
Physical scoop breakdown1.39 cups
1 cup
1/3 cup
2 ¾ tsp
Edit either side to reverseRolled Oats chart →
Grams
125 g
Ounces
4.41 oz
US Cups
1 ⅓ cups + 2 ¾ tsp
Metric (250mL)
1.31 c
Tablespoons
22.22 tbsp
Milliliters
328.6 mL

Kitchen note: 1 US Customary Cup (236.6 mL) of old-fashioned rolled oats (dip and sweep) weighs 90g, while 1 International Metric Cup (250 mL) weighs 95g.

Batch Scaling Around 125g Old-Fashioned Rolled Oats

Batch scaling conversion table around 125g of Old-Fashioned Rolled Oats (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×) 62.5g (2.2 oz) ⅔ cup + 1 ¼ tsp 164.3 mL
Standard (1×) 125g (4.41 oz) 1 ⅓ cups + 2 ¾ tsp 328.6 mL
1.5× Batch 187.5g (6.61 oz) 2 cups + 1 tbsp + 1 tsp 492.9 mL
Double Batch (2×) 250g (8.82 oz) 2 ¾ cups + 1 ¼ tsp 657.2 mL
Triple Batch (3×) 375g (13.23 oz) 4 cups + 2 tbsp + 2 tsp 985.8 mL

Measuring 125g of Old-Fashioned Rolled Oats in the Kitchen

Because 1 US Customary Cup (236.6 mL) of old-fashioned rolled oats weighs 90g when measured dip and sweep, 125 Grams (125g) translates to 1.39 US cups (1 ⅓ cups + 2 ¾ tsp).

Without a kitchen scale, measure 1 ⅓ cups + 2 ¾ tsp (22.22 tablespoons total) using dip and sweep technique. Spoon rolled oats gently into a dry measuring cup until heaping, then sweep level with a straight edge. Shaking or tapping the cup settles the broad, flat oat flakes into trapped gaps, increasing cup weight to nearly 100 grams.

Source note: USDA FoodData Central FDC ID 173904; King Arthur Baking Ingredient Weight Chart

Frequently Asked Questions

How many cups is 125 grams of old-fashioned rolled oats? ▾

125 grams of old-fashioned rolled oats (Dip and sweep, 90g per US cup) equals 1 ⅓ cups + 2 ¾ tsp (1.39 US Customary Cups, 1.31 Metric 250 mL cups, or 22.22 tablespoons).

Can I substitute quick oats for rolled oats by weight? ▾

Yes, 90 grams of quick oats can replace 90 grams of rolled oats in most baking recipes, producing a slightly denser and more uniform crumb.

Why does a cup of rolled oats weigh so little? ▾

Whole oat groats that have been steamed and flattened into wide flakes create large, irregular air pockets inside a volume measuring cup.