How to measure whole flaxseed
How full the cup is and how firmly it is packed changes what it holds, so the same cup can weigh a little more or less in your kitchen. A scale gives the same result every time; the chart below converts any amount.
Source: 140 grams per US cup is the weight per cup in King Arthur Baking’s ingredient weight chart, entry “Flaxseed, 1/4 cup = 1 1/4 oz = 35 g”, multiplied by 4 for one cup. A US cup is about 237 milliliters.
Whole flaxseed: cups to grams chart
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 18 g | 0.62 oz |
| 1/4 cup | 35 g | 1.23 oz |
| 1/3 cup | 47 g | 1.65 oz |
| 1/2 cup | 70 g | 2.47 oz |
| 2/3 cup | 93 g | 3.29 oz |
| 3/4 cup | 105 g | 3.7 oz |
| 1 cup | 140 g | 4.94 oz |
| 1 1/2 cups | 210 g | 7.41 oz |
| 2 cups | 280 g | 9.88 oz |
| 3 cups | 420 g | 14.8 oz |
| 4 cups | 560 g | 19.8 oz |
Tablespoons and teaspoons of whole flaxseed
Three teaspoons make a tablespoon and 16 tablespoons make a cup, so the spoon weights follow straight from the 140 grams per cup. Use level spoons, not heaped ones.
| Spoons | Grams |
|---|---|
| 1/4 tsp | 0.7 g |
| 1/2 tsp | 1.5 g |
| 1 tsp | 2.9 g |
| 1 tbsp | 8.8 g |
| 2 tbsp | 18 g |
| 3 tbsp | 26 g |
| 4 tbsp | 35 g |
Grams of whole flaxseed to cups
Going the other way, divide the grams by 140. A cup of whole flaxseed weighs 97 grams less than a cup of water, which is 237 grams.
| Grams | Cups | In the kitchen |
|---|---|---|
| 25 g | 0.18 cup | about 2.9 tbsp |
| 50 g | 0.36 cup | just under 3/8 cup |
| 100 g | 0.71 cup | just under 3/4 cup |
| 150 g | 1.07 cups | just under 1 1/8 cups |
| 200 g | 1.43 cups | just over 1 3/8 cups |
| 250 g | 1.79 cups | just over 1 3/4 cups |
| 300 g | 2.14 cups | just over 2 1/8 cups |
| 400 g | 2.86 cups | just under 2 7/8 cups |
| 500 g | 3.57 cups | just under 3 5/8 cups |
| 1,000 g | 7.14 cups | just over 7 1/8 cups |
Other seeds per cup
- Ground flaxseed: 100 grams per cup
- Chia seeds: 148 grams per cup
- Sesame seeds: 142 grams per cup
- Sunflower seeds: 140 grams per cup
- Pumpkin seeds: 160 grams per cup
- Poppy seeds: 144 grams per cup
For every ingredient in one place, open the cups to grams converter. The recipe scaler scales the seeds with the rest of the recipe, and the weight converter turns grams into ounces.
Frequently asked questions
How many grams is 1/2 cup of whole flaxseed?
About 70 grams. A full cup is about 140 grams and 1/4 cup about 35 grams.
How many cups is 100 grams of whole flaxseed?
About 0.71 cups, just under 3/4 cup. Divide the grams by 140 to get cups.
How many grams are in a tablespoon of whole flaxseed?
About 8.8 grams in a tablespoon and 2.9 grams in a teaspoon, measured level.
Where does 140 grams per cup of whole flaxseed come from?
From King Arthur Baking’s ingredient weight chart, which gives 1/4 cup = 1 1/4 oz = 35 g. That figure is multiplied up to one full cup.