120 Grams of Oat Flour in Cups
120 grams of oat flour doesn't land on a clean fraction, so the result below is calculated exactly rather than rounded to a common measure. Based on a density of 92g per cup, it equals 1.30 cups.
- Cups (US Customary)
- 1.30 (1⅓)
- Tablespoons
- 20.9
- Teaspoons
- 62.6
- Milliliters
- 309 ml
120 grams of oat flour = 1.30 cups (1⅓ cup / 20.9 tbsp / 62.6 tsp)
Oat Flour has a density of approximately 92g per cup. Homemade (blended from oats) can run closer to 100g. Source: USDA FoodData Central. This is the figure used everywhere on this page, including the tablespoon and teaspoon values, so the numbers stay consistent whether you're reading the summary line, the table, or the FAQ answers below.
| Grams | Cups | Fraction | Tablespoons | Teaspoons |
|---|---|---|---|---|
| 100g | 1.09 | 1⅛ | 17.4 | 52.2 |
| 110g | 1.20 | 1¼ | 19.1 | 57.4 |
| 120g | 1.30 | 1⅓ | 20.9 | 62.6 |
| 125g | 1.36 | 1⅜ | 21.7 | 65.2 |
| 130g | 1.41 | 1⅜ | 22.6 | 67.8 |
How 120g Converts, Step by Step
120g divided by 92g (the weight of one cup of oat flour) equals 1.30 cups. Multiplying that by 16 gives 20.9 tablespoons, and by 48 gives 62.6 teaspoons, since one cup always equals 16 tablespoons or 48 teaspoons regardless of the ingredient.
Oat Flour is lighter than water, which weighs about 236g per cup. That's why 120g of oat flour takes up more volume (309ml) than the same weight of water would (120ml). For a side-by-side look at how other ingredients compare, see the 120 grams to cups page.
If You're Using a Metric or Imperial Cup
The 1.30 cup figure above uses the US Customary cup (236.588ml). Recipes written outside the US sometimes use a metric cup (250ml) or an imperial (uk) cup (284.131ml) instead. At 120g, that's 1¼ metric cups or 1⅛ imperial cups of oat flour, close to the US figure but not identical. The cup standard switch in the converter above recalculates this instantly for any gram amount.
Scaling This 120g Amount
Doubling a recipe that calls for 120g of oat flour means weighing 240g, or measuring 2.61 cups if you're working by volume instead of weight. Halving it means 60g, or 0.65 cups. Weight scales exactly with simple multiplication; cup measurements compound any scooping error each time they're doubled or halved, so weighing is more reliable the more a recipe is scaled.
Oat Flour Next to Other Flours
Within flours, density still varies by ingredient. At 120g, almond flour (96g per cup) measures 1¼ cup, while coconut flour (112g per cup) measures 1⅛ cup, compared to 1⅓ cup for oat flour. Swapping ingredients in a recipe by cup measurement alone, without adjusting for this difference, changes the actual weight used.
Where This Amount Shows Up in Recipes
- Oat flour muffins typically use 120g (about 1¼ cups) per batch.
- Gluten-free banana bread often calls for 180g of oat flour.
- Oat flour pancakes usually need about 100g for four servings.
Measuring This Precisely
Flours
Spoon the flour into the cup, then level it off with a straight edge. Never scoop directly from the bag — that packs it down and adds extra weight.
For exact results
Sifting before measuring lowers the weight per cup by adding air, so a recipe written for sifted flour will call for a slightly larger volume than one written for unsifted. Check whether your recipe specifies sifted flour before comparing it to a standard chart.
For every gram amount at once, the oat flour conversion chart lists oat flour across the full range from 1g to 1000g in one table.
Frequently Asked Questions
What is 120 grams of oat flour in cups exactly?+
120 grams of oat flour equals 1.30 cups, based on a density of 92g per cup.
Why doesn't 120g of oat flour match a simple fraction?+
120g isn't a multiple of oat flour's per-cup weight, so the cup value lands between common fractions. The closest practical measure is 1⅓ cup.
What's the most reliable way to measure 120g of oat flour?+
A kitchen scale set to grams gives an exact 120g reading. Cups only approximate this amount, since 1⅓ cup rounds to the nearest practical fraction.
Is 120g likely a typo for a rounder amount?+
Possibly, if a recipe seems to expect a cleaner number. Check the nearby amounts table below for the closest common gram values for oat flour.