All ingredient weights
Baking & flours

Rolled oats: weights & conversions

A US cup of rolled oats weighs about 81 g. 100 g is 379 calories and 13.2 g of protein.

Also written as: oats, oatmeal, old fashioned oats, quick oats.

Convert any amount

Not one of the amounts below? Type your own and convert it instantly.

1 cup of rolled oats is about 81 grams.

Cups to grams

What each measure of rolled oats weighs, from the cup weight above.

rolled oats volume conversions
VolumeGramsOunces
1 cup81 g2.86 oz
3/4 cup60.8 g
2/3 cup54 g
1/2 cup40.5 g
1/3 cup27 g
1/4 cup20.3 g
1 tablespoon5.06 g
1 teaspoon1.69 g

Ounces and pounds

The weights an older recipe card is most likely to use.

rolled oats weight conversions
WeightGramsOunces
1 oz28.3 g
4 oz (1/4 lb)113 g
8 oz (1/2 lb)227 g
1 lb454 g
100 g100 g

Nutrition

Per 100 g of edible portion, transcribed from USDA reference data, and scaled to the measures above.

Nutrition for rolled oats by measure
MeasureCaloriesProteinFatCarbsFiberSodium
Per 100 g (100 g)37913.2 g6.5 g67.7 g10.1 g6 mg
Per cup (81 g)30710.7 g5.27 g54.8 g8.18 g5 mg
Per tablespoon (5.06 g)190.67 g0.33 g3.43 g0.51 g0 mg
Per 4 oz (113 g)43015 g7.37 g76.8 g11.5 g7 mg

Using rolled oats in a recipe?

This page gives you the ingredient weight. Keep the whole recipe, its original card and your notes together in a family cookbook you can cook from again. When the ingredients can be measured reliably, you can also see nutrition per serving.

Start your family cookbook

Create an account, then add the recipe you are measuring.

Measuring from a handwritten card? Scan it free and keep the handwriting with the recipe.

Cook with rolled oatsMake-Ahead Overnight OatsRead this free recipe →

Free recipes that use rolled oats

From our starter library — free to read, free to save into your own cookbook.

Common questions

How many grams are in a cup of rolled oats?
One US cup of rolled oats weighs about 81 g (2.86 oz). A tablespoon is about 5.06 g and a teaspoon about 1.69 g.
How many cups is 100 g of rolled oats?
100 g of rolled oats is about 1.23 cups — near enough to 1 1/4 cups in a measuring cup.
How many calories are in rolled oats?
Rolled oats has about 379 calories per 100 g, which works out to roughly 307 calories a cup.
How much protein is in rolled oats?
About 13.2 g of protein per 100 g — roughly 15 g in a 4 oz portion.

More from baking & flours