How Many Grams in a Cup of Flax Seeds (Whole)?
A cup of flax seeds (whole) weighs about 168 grams. Here is the complete cup-to-gram and gram-to-cup conversion table, plus the answer to common volume-to-weight questions for flax seeds (whole).
Volume to Grams — Flax Seeds (Whole)
Quick reference for the most common amounts. Numbers rounded to the nearest gram.
| Cups | Grams |
|---|---|
| 1/4 cup | 42 g |
| 1/3 cup | 56 g |
| 1/2 cup | 84 g |
| 2/3 cup | 112 g |
| 3/4 cup | 126 g |
| 1 cup | 168 g |
| 1 1/2 cups | 252 g |
| 2 cups | 336 g |
| 3 cups | 504 g |
| 4 cups | 672 g |
| Tablespoons | Grams |
|---|---|
| 1 tsp | 3.5 g |
| 1 tbsp | 10.5 g |
| 2 tbsp | 21 g |
| 3 tbsp | 31.5 g |
| 4 tbsp | 42 g |
| 6 tbsp | 63 g |
| 8 tbsp | 84 g |
| 12 tbsp | 126 g |
| 16 tbsp | 168 g |
Grams to Cups — Flax Seeds (Whole)
Have a recipe in grams and need cups? Use this reverse table.
| Grams | Cups | Tablespoons |
|---|---|---|
| 25 g | 0.149 cups | 2.38 tbsp |
| 50 g | 0.298 cups | 4.76 tbsp |
| 75 g | 0.446 cups | 7.14 tbsp |
| 100 g | 0.595 cups | 9.52 tbsp |
| 150 g | 0.893 cups | 14.3 tbsp |
| 200 g | 1.19 cups | 19 tbsp |
| 250 g | 1.49 cups | 23.8 tbsp |
| 300 g | 1.79 cups | 28.6 tbsp |
| 500 g | 2.98 cups | 47.6 tbsp |
| 1000 g | 5.95 cups | 95.2 tbsp |
Why does flax seeds (whole) weigh what it weighs?
Tiny seeds pack tightly and weigh more per cup than you might expect. Seeds also absorb moisture differently — chia and flax can absorb several times their weight in liquid, which matters for hydration-sensitive recipes. Weighing seeds gives you predictable results, especially in bread baking and gluten-free formulas.
For flax seeds (whole) specifically, 1 cup weighs 168g. That is the figure to plug into recipes calling for cup measurements when you want gram precision. ChefVault stores this density (and 118 others) so you never have to look it up twice.
Recipes that originated outside the United States almost always specify weight in grams. Translating these to US cup measurements introduces error in every step. The ChefVault app handles the math automatically — paste a recipe, hit convert, get a clean weight-based version.
Frequently Asked Questions
How many grams are in 1 cup of flax seeds (whole)?
1 cup of flax seeds (whole) weighs approximately 168 grams.
How many grams in 1 tablespoon of flax seeds (whole)?
1 tablespoon of flax seeds (whole) weighs approximately 10.5 grams.
How many grams in 1 teaspoon of flax seeds (whole)?
1 teaspoon of flax seeds (whole) weighs approximately 3.5 grams.
How many grams are in 1/2 cup of flax seeds (whole)?
1/2 cup of flax seeds (whole) weighs about 84 grams.
How many grams are in 1/4 cup of flax seeds (whole)?
1/4 cup of flax seeds (whole) weighs about 42 grams.
How many tablespoons of flax seeds (whole) are in 100 grams?
100 grams of flax seeds (whole) is about 9.52 tablespoons.
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