Fibermax · fiber intake estimator
How much fiber is in oatmeal?
Cooked oatmeal is one of the easiest high-fiber breakfast bases. Exact grams depend on dry vs cooked weight and add-ins (fruit, chia, nuts).
Use the reference below, then paste your full day — including the oatmeal bowl — to see progress toward your daily target.
- Cooked oatmeal: ~4.0g fiber / 1 cup (234g) (Curated USDA-style reference on this site (Oatmeal, cooked))
- Dry rolled oats: Higher per 100g; portions are smaller by volume (Prefer logging “oatmeal” as prepared if that is what you ate)
- Source: USDA FoodData Central + curated staples (See Method & Sources on this site)
JavaScript is required for the interactive calculator.
FAQ
How much fiber is in a cup of oatmeal?
On this site, cooked oatmeal is referenced around 4g fiber per 1 cup (234g). Brands and water ratios vary — edit grams after you calculate if needed.
Dry oats vs cooked oatmeal?
Dry oats are denser per cup. If you ate a prepared bowl, log cooked oatmeal; if you weighed dry oats, prefer a grams amount.
How do I boost oatmeal fiber?
Common add-ins: chia or flax, berries, pear, beans at later meals. Recalculate the full day after changes.