45g Oats in Cups

45 grams of rolled oats is ½ cup 90g per US cup. This is porridge and flapjack range. Oats weigh only about 90 g per cup, so the cup number looks surprisingly large next to denser ingredients.

How many cups is 45g of rolled oats?

45 grams of rolled oats equals:

½
approximate cup
0.5
decimal cup
8.04
tablespoons
90g
per cup

Measuring by hand? That is 8 tablespoons. It is about 9% of a 500 g bag of oats.

Rolled oats are flaky and full of air, so they take up far more cup volume than the same weight of flour or sugar. Do not press them down.

Grams to Cups Converter

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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.

45 grams of Oats is about ½ cup, using a 236.588 millilitre cup at 90 grams per cup.

½
cup
¼½¾1
45g of Oats
= 0.50 cups (decimal)
About 8.0 tablespoons or 23.7 teaspoons (approximate)
Measured out: 8 tablespoons
1 cup (236.588ml) = 90g

See the full 45g to cups guide →

See 45g oats to cups →

Quick conversions:

45g of rolled oats vs other ingredients

Grams measure weight and cups measure volume, so the same 45 grams fills a different amount of cup for every ingredient:

Ingredient45g in cupsg per cup
Oats½ cup90
All-Purpose Flour⅜ cup125
Granulated Sugar¼ cup200
Butter¼ cup227

See all 45g conversions on the 45 grams to cups chart.

Nearby rolled oats amounts

Grams of rolled oatsCupsTablespoons
28g⅓ cup5 tbsp
30g⅓ cup5.36 tbsp
35g⅜ cup6.25 tbsp
40g½ cup7.14 tbsp
50g½ cup8.93 tbsp
56g⅝ cup10 tbsp
60g⅔ cup11 tbsp
65g¾ cup12 tbsp

Full ladder on the oats grams to cups chart.

Frequently Asked Questions

45 grams of rolled oats is ½ cup. In kitchen measures that is 8 tablespoons, worked out from 90 grams per US cup.

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