Oat Bran — Grams & Cups Converter
1 cup of oat bran weighs about 94 g. So 100 g ≈ 1 1/8 cups, 200 g ≈ 2 1/8 cups, and 300 g ≈ 3 1/4 cups. Convert any amount between grams, cups, ounces, tablespoons and millilitres with the calculator below.
💡 Tip: Oat bran is the fibre-rich outer layer of the oat groat — finer than rolled oats and not the same as oatmeal. Stir it into porridge, smoothies or batter.
Cups to grams chart for oat bran
| Cups | Grams | Ounces |
|---|---|---|
| 1/4 | 23.5 | 0.83 |
| 1/3 | 31.3 | 1.11 |
| 1/2 | 47 | 1.66 |
| 2/3 | 62.7 | 2.21 |
| 3/4 | 70.5 | 2.49 |
| 1 | 94 | 3.32 |
| 1 1/2 | 141 | 4.97 |
| 2 | 188 | 6.63 |
| 3 | 282 | 9.95 |
Grams to cups chart for oat bran
| Grams | Cups | Ounces |
|---|---|---|
| 10 | 1/8 | 0.35 |
| 25 | 1/4 | 0.88 |
| 50 | 1/2 | 1.76 |
| 75 | 3/4 | 2.65 |
| 100 | 1 1/8 | 3.53 |
| 125 | 1 1/3 | 4.41 |
| 150 | 1 5/8 | 5.29 |
| 200 | 2 1/8 | 7.05 |
| 250 | 2 2/3 | 8.82 |
| 300 | 3 1/4 | 10.6 |
| 500 | 5 1/3 | 17.6 |
Spoon reference: 1 tablespoon ≈ 5.88 g, 1 teaspoon ≈ 1.96 g.
Oat bran vs oatmeal and oat flour
Oat bran is the fibre-rich outer layer of the oat groat, milled to a soft, fluffy texture that weighs about 94 g per cup. It's not the same as oatmeal (whole rolled oats) or oat flour (the whole oat ground to powder) — oat bran is just the bran, so it's higher in soluble fibre and cooks down softer. It makes a quick, creamy hot cereal in a few minutes, and a spoonful stirs easily into smoothies, yoghurt, muffin batter or meatballs.
In baking it can usually replace up to about a quarter of the flour for extra fibre without weighing the crumb down too much.
Frequently asked questions
- How many grams is 1 cup of oat bran?
- 1 US cup of oat bran weighs about 94 grams (3.32 ounces).
- How many cups is 100g of oat bran?
- 100 grams of oat bran is about 1 1/8 cups.
- How many cups is 200g of oat bran?
- 200 grams of oat bran is about 2 1/8 cups.
- How many cups is 250g of oat bran?
- 250 grams of oat bran is about 2 2/3 cups.
- How many cups is 300g of oat bran?
- 300 grams of oat bran is about 3 1/4 cups.
- How many cups is 500g of oat bran?
- 500 grams of oat bran is about 5 1/3 cups.
- How many grams is ½ cup of oat bran?
- Half a US cup of oat bran is about 47 grams.
- How much does 1 cup of oat bran weigh?
- 1 cup of oat bran weighs about 94 grams, or roughly 3.32 ounces.
- How many grams in a tablespoon of oat bran?
- About 5.88 grams per tablespoon (and roughly 1.96 g per teaspoon).
- Why do my numbers differ slightly?
- Density changes with how the oat bran is packed, sifted or measured. For precise baking, weigh with a scale instead of using cups.
- How many grams is 2 cups of oat bran?
- About 188 g, at roughly 94 g per cup.
- How many cups is 150g of oat bran?
- About 1 ⅝ cups.
- Is oat bran the same as oatmeal?
- No. Oatmeal is made from whole rolled or cut oats, while oat bran is only the fibre-rich outer layer of the groat. Oat bran is finer and cooks into a softer, creamier porridge.
- Is oat bran the same as oat flour?
- No. Oat flour is the whole oat ground to a powder; oat bran is just the milled outer bran layer, so it's higher in soluble fibre and coarser in texture.
- Can I substitute oat bran for flour in baking?
- Partly. You can usually replace up to about a quarter of the flour with oat bran for extra fibre, but swapping all of it leaves baked goods dense and crumbly without gluten.