How many grams are in a cup of rolled oats?

1 US cup of rolled oats weighs 89 g, or 3.1 oz. Type any amount to convert it from cups to grams, or from grams to cups.

1 cup of rolled oats weighs 89 g. Source: King Arthur Baking.

1 cup of rolled oats is 89 grams.

Converting something else? The cups to grams converter has all 103 ingredients.

Save a recipe once. Read it in cups or grams.

ReciDeck saves recipes from Instagram, TikTok, YouTube and any website as clean cards. Each card switches between cups and grams with one tap and rescales to the servings you need. Free to start on iPhone.

Download ReciDeck on the App Store

Android version coming soon. Join the waitlist

Save a recipe once. Read it in cups or grams.

ReciDeck saves recipes from Instagram, TikTok, YouTube and any website as clean cards. Each card switches between cups and grams with one tap and rescales to the servings you need. Free to start on iPhone.

Download ReciDeck on the App Store

Android version coming soon. Join the waitlist

Save a recipe once. Read it in cups or grams.

ReciDeck saves recipes from Instagram, TikTok, YouTube and any website as clean cards. Each card switches between cups and grams with one tap and rescales to the servings you need. Free to start on iPhone.

Download ReciDeck on the App Store

Android version coming soon. Join the waitlist

Rolled oats cups to grams chart

1 US cup of rolled oats weighs 89 g, or 3.1 oz. That is 109 g lighter than a cup of uncooked rice (198 g). The weight is from King Arthur Baking, checked in November 2026.

US cups

Grams

Ounces

¼ cup

22

0.8

⅓ cup

30

1

½ cup

45

1.6

⅔ cup

59

2.1

¾ cup

67

2.4

1 cup

89

3.1

1 ½ cups

134

4.7

2 cups

178

6.3

Rolled oats grams to cups chart

The closest measure you can scoop with cups and spoons, and the exact amount in cups.

Grams

Kitchen measure

Cups

50 g

½ cup plus 1 tablespoon

0.56

100 g

1 cup plus 2 tablespoons

1.12

125 g

1 ¼ cups plus 2 tablespoons

1.4

150 g

1 ⅔ cups

1.69

200 g

2 ¼ cups

2 ¼

250 g

2 ¾ cups plus 1 tablespoon

2.81

500 g

5 ⅔ cups

5 ⅔

Rolled oats in tablespoons and teaspoons

1 tablespoon of rolled oats weighs 6 g and 1 teaspoon weighs 1.9 g. A cup is 16 tablespoons or 48 teaspoons.

Grams

Tablespoons

Teaspoons

5 g

0.9

2.7

10 g

1.8

5 ⅜

15 g

2.7

8 ⅛

25 g

4 ½

13 ½

50 g

9

27

100 g

18

54

How do you measure a cup of rolled oats?

Fill the cup without pressing and level the top. How the rolled oats settles changes what a cup weighs, so for baking a scale is the surer measure.

More conversions

Questions, answered.

Something else? Write to us at support@recideck.com.

How many cups is 250 g of rolled oats?

250 g of rolled oats is about 2 ¾ cups plus 1 tablespoon, or 2.81 cups.

How many cups is 250 g of rolled oats?

250 g of rolled oats is about 2 ¾ cups plus 1 tablespoon, or 2.81 cups.

How many cups are in a pound of rolled oats?

1 pound (454 g) of rolled oats is about 5.1 cups.

How many cups are in a pound of rolled oats?

1 pound (454 g) of rolled oats is about 5.1 cups.

Does a metric cup of rolled oats weigh the same as a US cup?

No. A metric cup holds 250 ml and a US cup 236.6 ml, so a metric cup of rolled oats weighs 94 g against 89 g. Australian recipes use the metric cup.

Does a metric cup of rolled oats weigh the same as a US cup?

No. A metric cup holds 250 ml and a US cup 236.6 ml, so a metric cup of rolled oats weighs 94 g against 89 g. Australian recipes use the metric cup.

Keep every recipe in one safe place.

ReciDeck saves recipes from Instagram, TikTok, YouTube, websites and handwritten pages as clean cards, organized and easy to find. Free to start on iPhone.

Download ReciDeck on the App Store

Android version coming soon. Join the waitlist

ReciDeck

ReciDeck is a recipe deck app for iPhone: every recipe you save becomes a card. It saves recipes from Instagram, TikTok, YouTube, recipe websites and photos of printed or handwritten pages, and keeps them safe in one place, organized and easy to find.

© 2026 Bruno Dini. ReciDeck is not affiliated with TikTok, Instagram or YouTube.

Apple, the Apple logo and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

ReciDeck

ReciDeck is a recipe deck app for iPhone: every recipe you save becomes a card. It saves recipes from Instagram, TikTok, YouTube, recipe websites and photos of printed or handwritten pages, and keeps them safe in one place, organized and easy to find.

© 2026 Bruno Dini. ReciDeck is not affiliated with TikTok, Instagram or YouTube.

Apple, the Apple logo and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.

ReciDeck

ReciDeck is a recipe deck app for iPhone: every recipe you save becomes a card. It saves recipes from Instagram, TikTok, YouTube, recipe websites and photos of printed or handwritten pages, and keeps them safe in one place, organized and easy to find.

© 2026 Bruno Dini. ReciDeck is not affiliated with TikTok, Instagram or YouTube.

Apple, the Apple logo and iPhone are trademarks of Apple Inc., registered in the U.S. and other countries. App Store is a service mark of Apple Inc.