Oats Grams to Cups

Oats grams to cups at a glance

One cup of rolled (old-fashioned) oats weighs just 90 grams — oats are among the lightest ingredients in the baking aisle, with big flakes and lots of air between them.

Quick oats are chopped finer, so they settle denser at about 95-100g per cup. Steel-cut oats are something else entirely — dense little pellets at about 160g per cup — and they cannot be swapped into recipes that call for rolled oats without changing the result.

1 Cup of Oats in Grams

One cup of oats weighs 90 grams. Here are the common cup fractions by weight:

1 cup90g
¾ cup68g
⅔ cup60g
½ cup45g
⅓ cup30g
¼ cup23g

Grams to Cups Converter

Select an ingredient for accurate conversions

Quick select:
Oats(Dry Goods)
90g per cup
grams

Dedicated conversion guides use the default US customary cup.

Applies to this page only — the database value (90g per US cup) is unchanged.

Quick conversions:

100g150g200g250g300g500g

Oats Density at a Glance

90g
per cup
5.6g
per tablespoon
1.9g
per teaspoon

See oats among 399 ingredients in the ingredient database.

Oats Conversion Chart

Common gram amounts of oats converted to cups and tablespoons:

GramsCupsTablespoons
10g⅛ cup2 tbsp
15g⅛ cup3 tbsp
20g¼ cup4 tbsp
25g¼ cup4 tbsp
28g⅓ cup5 tbsp
30g⅓ cup5 tbsp
35g⅜ cup6 tbsp
40g½ cup7 tbsp
45g½ cup8 tbsp
50g½ cup9 tbsp
56g⅝ cup10 tbsp
60g⅔ cup11 tbsp
65g¾ cup12 tbsp
70g¾ cup13 tbsp
75g⅞ cup13 tbsp
80g⅞ cup14 tbsp
85g1 cup15 tbsp
90g1 cup16 tbsp
100g1⅛ cups18 tbsp
110g1¼ cups20 tbsp
113g1¼ cups20 tbsp
115g1¼ cups21 tbsp
120g1⅓ cups21 tbsp
125g1⅜ cups22 tbsp
130g1½ cups23 tbsp
140g1½ cups25 tbsp
150g1⅔ cups27 tbsp
160g1¾ cups29 tbsp
165g1⅞ cups29 tbsp
170g1⅞ cups30 tbsp
175g2 cups31 tbsp
180g2 cups32 tbsp
185g2 cups33 tbsp
190g2⅛ cups34 tbsp
200g2¼ cups36 tbsp
220g2½ cups39 tbsp
225g2½ cups40 tbsp
227g2½ cups41 tbsp
230g2½ cups41 tbsp
240g2⅔ cups43 tbsp
250g2¾ cups45 tbsp
255g2⅞ cups46 tbsp
260g2⅞ cups46 tbsp
275g3 cups49 tbsp
280g3⅛ cups50 tbsp
300g3⅓ cups54 tbsp
320g3½ cups57 tbsp
340g3¾ cups61 tbsp
350g3⅞ cups63 tbsp
360g4 cups64 tbsp
375g4⅛ cups67 tbsp
390g4⅓ cups70 tbsp
400g4½ cups71 tbsp
410g4½ cups73 tbsp
420g4⅔ cups75 tbsp
450g5 cups80 tbsp
454g5 cups81 tbsp
480g5⅓ cups86 tbsp
500g5½ cups89 tbsp
550g6⅛ cups98 tbsp
560g6¼ cups100 tbsp
600g6⅔ cups107 tbsp
650g7¼ cups116 tbsp
700g7¾ cups125 tbsp
750g8⅓ cups134 tbsp
800g8⅞ cups143 tbsp
900g10 cups161 tbsp
1000g11⅛ cups179 tbsp

Dedicated oats amount guides link directly; other rows link to the all-ingredient amount chart.

Dry Goods compared by cup weight

Swapping one type for another changes the weight of a cup, so a recipe written in cups is not portable between them:

Type1 cupvs oats
Oats90g—
Rice (Uncooked)185g+95g
Chocolate Chips170g+80g
Cocoa Powder86g-4g
Cornstarch128g+38g
Breadcrumbs108g+18g
Baking Powder220g+130g
Baking Soda288g+198g
Salt288g+198g
Kosher Salt241g+151g
Instant Yeast150g+60g
Quinoa170g+80g

What changes a cup of oats

A cup of oats weighs about 90g measured the way this chart assumes. Packing it down can push it toward 117g and a loose fill can leave it near 77g, which is why weighing gives a repeatable result and a cup measure gives an estimate.

Other Popular Ingredients

FlourSugarButterBrown SugarPowdered SugarRiceCocoa PowderHoneyMilkWaterPeanut ButterYogurtGreek YogurtBread FlourAlmond FlourCake FlourWhole Wheat FlourOat Flour

Frequently Asked Questions

100 grams of rolled oats is about 1.1 cups — 1 cup plus a generous tablespoon.

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