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Old-Fashioned Rolled Oats — Grams ↔ Cups Converter

1 US Customary cup (236.6 mL) of old-fashioned rolled oats weighs 90 grams (3.17 ounces or 5.6g per tablespoon) when measured dip and sweep; 1 Metric cup (250 mL) weighs 95.1g and 100g equals 1 ⅛ cups for accurate kitchen baking.

Batch
Measuring density
Standard: Dip and sweep90g / cup
Converted Measure
100 g Old-Fashioned Rolled Oats (Dip and sweep) =
1 ⅛ US Cups
Physical scoop breakdown1.11 cups
1 cup
×2
2 tbsp
Edit either side to reverseRolled Oats chart →
Grams
100 g
Ounces
3.53 oz
US Cups
1 ⅛ cups
Metric (250mL)
1.05 c
Tablespoons
17.78 tbsp
Milliliters
262.9 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.

Rolled Oats: Cups & Spoons to Grams

Based on 90g per 236.6 mL US cup (Dip and sweep).

Old-Fashioned Rolled Oats cups, tablespoons, and teaspoons to grams and ounces conversion chart (90g per US cup)
Volume Grams Ounces
1 Teaspoon (tsp) 1.9 g 0.07 oz
1 Tablespoon (tbsp) 5.6 g 0.2 oz
⅛ US Cup (2 tbsp) 11.3 g 0.4 oz
¼ US Cup (4 tbsp) 22.5 g 0.79 oz
⅓ US Cup 30 g 1.06 oz
½ US Cup (8 tbsp) 45 g 1.59 oz
⅔ US Cup 60 g 2.12 oz
¾ US Cup (12 tbsp) 67.5 g 2.38 oz
1 US Cup (236.6 mL) 90 g 3.17 oz
1 Metric Cup (250 mL) 95.1 g 3.35 oz
1 ½ US Cups 135 g 4.76 oz
2 US Cups 180 g 6.35 oz
3 US Cups 270 g 9.52 oz
4 US Cups (1 Quart) 360 g 12.7 oz

Rolled Oats: Grams to US Cups

Nearest practical baker cup & spoon breakdown.

Old-Fashioned Rolled Oats grams to US cups and kitchen spoon fractions conversion chart
Weight Kitchen Measure Decimal
10 g 1 tbsp + 2 ¼ tsp 0.11 c
25 g ¼ cup + 1 ¼ tsp 0.28 c
50 g ½ cup + 2 ¾ tsp 0.56 c
75 g ¾ cup + 1 tbsp + 1 tsp 0.83 c
100 g 1 ⅛ cups 1.11 c
125 g 1 ⅓ cups + 2 ¾ tsp 1.39 c
150 g 1 ⅔ cups 1.67 c
200 g 2 cups + 3 tbsp + 1 ¾ tsp 2.22 c
250 g 2 ¾ cups + 1 ¼ tsp 2.78 c
300 g 3 ⅓ cups 3.33 c
400 g 4 ⅓ cups + 1 tbsp + 2 ¼ tsp 4.44 c
500 g 5 ½ cups + 2 ¾ tsp 5.56 c
750 g 8 ⅓ cups 8.33 c
1000 g 11 ⅛ cups 11.11 c

How to Measure Old-Fashioned Rolled Oats Accurately

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.

Data reference: USDA FoodData Central FDC ID 173904; King Arthur Baking Ingredient Weight Chart

Common Culinary Uses

  • Oatmeal porridge
  • Oatmeal raisin cookies
  • Fruit crisps and crumbles
  • Toasted breakfast granola

Weight-Aware Substitutions

  • Quick oats at 1:1 weight (85-90g), keeping in mind that quick oats absorb liquid more rapidly.
  • Rolled rye or barley flakes at 1:1 weight for a nuttier, rustic texture.

Exact Old-Fashioned Rolled Oats Recipe Conversions

Grams & Ounces to Cups

25g Rolled Oats to cups 30g Rolled Oats to cups 50g Rolled Oats to cups 75g Rolled Oats to cups 85g Rolled Oats to cups 100g Rolled Oats to cups 120g Rolled Oats to cups 125g Rolled Oats to cups 150g Rolled Oats to cups 175g Rolled Oats to cups 200g Rolled Oats to cups 225g Rolled Oats to cups 250g Rolled Oats to cups 300g Rolled Oats to cups 350g Rolled Oats to cups 400g Rolled Oats to cups 450g Rolled Oats to cups 500g Rolled Oats to cups 4 oz Rolled Oats to cups 8 oz Rolled Oats to cups 16 oz Rolled Oats to cups

Cups, Spoons & Sticks in Grams

¼ cup Rolled Oats in grams ⅓ cup Rolled Oats in grams ½ cup Rolled Oats in grams ⅔ cup Rolled Oats in grams ¾ cup Rolled Oats in grams 1 cup Rolled Oats in grams 2 cups Rolled Oats in grams 1 tbsp Rolled Oats in grams 100 mL Rolled Oats in grams

Old-Fashioned Rolled Oats Measuring FAQs

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.