One gram of oat flour is 0.52173913 teaspoons, so converting grams of oat flour to teaspoons means multiplying by 0.52173913. That factor is specific to this ingredient — it comes from its density, not from any relationship between the two units.
Put next to water — 1 g per mL exactly — oat flour measures 0.38886 g per mL. That ratio, 38.89%, is what separates this page from every other ingredient in the same units, and it is measured rather than defined.
A level teaspoon of oat flour weighs 1.917 g. A kitchen scale that reads to the nearest gram is therefore working at roughly 52.2% resolution on a single spoonful, which is why measuring spoons beat scales below about 5 g and lose to them above it. Three teaspoons make a tablespoon, so the same spoonful is 5.75 g if the recipe scales up.
Grams are the unit this conversion is really for. A domestic scale resolves to a gram, which is 1.09% of a cup of oat flour, so weighing gets an accuracy no measuring cup can reach. A 500 g pack of it is 5.435 cups, and a 1 kg pack 10.87.
What the number depends on: Ground rolled oats, and almost as light per cup as the flakes it came from.
The formula
grams- The amount of oat flour you are converting, in grams
0.521739130435- Teaspoons per gram for oat flour, from its density of 0.38886 g/mL
teaspoons- The equivalent quantity in teaspoons
How it works, step by step
- Enter the quantity in grams.
- It is multiplied by 0.521739130435, the teaspoons-per-gram figure for oat flour.
- The result appears in teaspoons, with a second reading in mL beneath it.
- Use the measure table if you want a standard recipe quantity rather than a number you type in.
Worked examples
50 g of oat flour in teaspoons
Take 50 g of oat flour: 50 × 0.52173913 gives 26.087 teaspoons. Doubling the batch takes it to 52.1739 teaspoons, because the relationship is a straight proportion once the density is known.
150 g of oat flour in teaspoons
150 g of oat flour weighs out at 78.2609 teaspoons. Divide 78.2609 by 0.52173913 and you get back to 150 g, which is the quickest check that the factor is the right way up.
500 g of oat flour in teaspoons
500 g of oat flour weighs out at 260.87 teaspoons. Divide 260.87 by 0.52173913 and you get back to 500 g, which is the quickest check that the factor is the right way up.
How to read your score
Frequently asked questions
How many teaspoons are in 1 g of oat flour?
One gram of oat flour is 0.52173913 teaspoons. Half that quantity is 0.26087 teaspoons and double it is 1.04348 teaspoons, so the figure scales straight up and down — there is no offset in this conversion, only the factor.
Why is a cup of oat flour not 236 g like water?
Because weight per cup depends on what is in the cup. Oat flour has a density of 0.38886 g per mL where water has 1.00, so a cup of it weighs 92 g rather than 236.6 g. That is a difference of 144.6 g per cup, and it is the reason a single volume-to-weight factor cannot be applied to every ingredient.
Does how I measure it change the weight?
Yes, and by more than most people expect. Handling changes the weight of a cup of oat flour by roughly 20% — about 9.2 g either side of 92 g — because ground rolled oats, and almost as light per cup as the flakes it came from. Weighing removes the question entirely.
Is a fluid ounce of oat flour the same as an ounce?
No. A fluid ounce is a volume — one eighth of a US cup, 29.57 mL — and an ounce is a weight. One fluid ounce of oat flour weighs 0.4057 oz, so the two readings differ by 59.4%. They coincide only for something with the density of water, and then only roughly.
Is this a US cup or a metric cup?
US customary: 236.59 mL, which is the cup every US recipe means. A metric cup is 250 mL, so the same cup of oat flour would weigh 97.215 g instead of 92 g — 5.22 g more, or 5.67%. Australian and some European recipes use the metric cup, and the difference is large enough to matter in baking.
Do I need a scale for this, or will measuring cups do?
At this size the spoon wins. One teaspoon of oat flour is 1.917 g, and a scale reading to the nearest gram is working at 52.2% resolution on that — a measuring spoon is the more accurate instrument below about 5 g, which is why spice quantities are still written in spoons.
How much does 2 tsp of oat flour weigh?
2 tsp of oat flour comes to 3.8333 g, or 3.8333 grams. This page runs that calculation in reverse — enter a weight and it returns the volume — and the teaspoons-to-grams page does it in the direction the question is usually asked.
Oat flour in grams and teaspoons
| Grams | Teaspoons | Unrounded |
|---|---|---|
| 5 g | 2.6087 tsp | 2.608695652 |
| 10 g | 5.21739 tsp | 5.217391304 |
| 25 g | 13.0435 tsp | 13.04347826 |
| 50 g | 26.087 tsp | 26.08695652 |
| 100 g | 52.1739 tsp | 52.17391304 |
| 125 g | 65.2174 tsp | 65.2173913 |
| 150 g | 78.2609 tsp | 78.26086957 |
| 200 g | 104.348 tsp | 104.3478261 |
| 250 g | 130.435 tsp | 130.4347826 |
| 300 g | 156.522 tsp | 156.5217391 |
| 500 g | 260.87 tsp | 260.8695652 |
| 1000 g | 521.739 tsp | 521.7391304 |
Based on 92 g per cup of oat flour. One gram of oat flour is 0.52173913 teaspoons.
| Measure | Grams | Ounces | Millilitres |
|---|---|---|---|
| 1 cup | 92 g | 3.25 oz | 236.6 mL |
| 1 tbsp | 5.75 g | 0.203 oz | 14.79 mL |
| 2 tsp | 3.833 g | 0.135 oz | 9.858 mL |
| 1 tsp | 1.917 g | 0.0676 oz | 4.929 mL |
| 3/4 tsp | 1.438 g | 0.0507 oz | 3.697 mL |
| 1/2 tsp | 0.9583 g | 0.0338 oz | 2.464 mL |
| 1/4 tsp | 0.4792 g | 0.0169 oz | 1.232 mL |
| 1/8 tsp | 0.2396 g | 0.00845 oz | 0.6161 mL |
US customary measures: 1 cup = 236.59 mL, 1 tbsp = 14.79 mL, 1 tsp = 4.93 mL.
| Ingredient | Grams per cup | Ounces per cup | Density (g/mL) |
|---|---|---|---|
| Panko breadcrumbs | 60 g | 2.116 oz | 0.2536 |
| Cocoa powder | 85 g | 2.998 oz | 0.3593 |
| Rolled oats | 90 g | 3.175 oz | 0.3804 |
| Oat flour (this page) | 92 g | 3.245 oz | 0.3889 |
| Almond flour | 96 g | 3.386 oz | 0.4058 |
| Rye flour | 102 g | 3.598 oz | 0.4311 |
| Dry breadcrumbs | 108 g | 3.81 oz | 0.4565 |
Ordered by weight. The spread across this group is why a single generic cups-to-grams factor cannot work.