Half Cup of Flaxseed (whole) in Grams
1/2 cup of flaxseed (whole) weighs 74.5g (2.63 oz, 120ml) according to USDA FoodData Central (1 cup flaxseed (whole) = 149g, spooned and leveled method). 1/2 cup = 0.5 of a full cup (240ml). See the full conversion table below for all amounts from 1 tablespoon to 3 cups.
Flaxseed (whole) Cup-to-Gram Conversion Table
Full range from 1 tablespoon to 3 cups. The highlighted row shows 1/2 cup.
| Amount | Grams |
|---|---|
| 1 tbsp | 9.31g |
| 2 tbsp | 18.63g |
| 1/8 cup | 18.63g |
| 1/4 cup | 37.25g |
| 1/3 cup | 49.67g |
| 1/2 cupthis page | 74.5g |
| 2/3 cup | 99.33g |
| 3/4 cup | 111.75g |
| 1 cup | 149g |
| 1 1/4 cups | 186.25g |
| 1 1/2 cups | 223.5g |
| 1 3/4 cups | 260.75g |
| 2 cups | 298g |
| 2 1/2 cups | 372.5g |
| 3 cups | 447g |
Source: USDA FoodData Central (FDC ID: 169414). 1 US cup = 240ml. Values use spooned-and-leveled method.
1/2 Cup of Different Ingredients — Weight Comparison
1/2 cup of different ingredients varies widely in weight because each has a different density. This matters when substituting ingredients in recipes.
| Ingredient | 1/2 Cup (g) |
|---|---|
| Sunflower Seeds (shelled) | 64g |
| Pumpkin Seeds (pepitas) | 64.5g |
| Sesame Seeds | 72g |
| Flaxseed (whole)current | 74.5g |
| Chia Seeds | 80g |
| Hemp Seeds (hulled) | 80g |
All values use USDA FoodData Central spooned-and-leveled method. Click any ingredient to see its full conversion table.
Measuring Flaxseed (whole) Accurately
Why weight matters: 1/2 cup of flaxseed (whole) can weigh anywhere from 63g to 89g depending on how you measure it. The USDA standard is 74.5g (spooned and leveled). Scooping directly from the container can add 10–20% extra weight, which affects recipe results — especially in baking.
About flaxseed (whole) density: Whole flaxseeds: 1 cup = 149g. Ground flaxseed (flax meal) is lighter: ~130g/cup. Ground flax is more digestible and bioavailable than whole. 1 tablespoon ground flax + 3 tablespoons water = 1 egg substitute (flax egg). USDA FDC 169414.
About 1/2 Cup as a Measurement
1/2 cup (120ml) is the most common single-serving measurement in baking. It equals 8 tablespoons or 24 teaspoons. Most standard muffin recipes call for 1/2 cup of flour per 6 muffins.
Half cup is a standard baking unit used in muffins, quick breads, pancakes, and cookie doughs. It represents exactly half of a US standard measuring cup (240ml).
Frequently Asked Questions
How many grams is 1/2 cup of flaxseed (whole)?
1/2 cup of flaxseed (whole) weighs 74.5 grams (2.63 oz, 120ml). Based on USDA FoodData Central: 1 cup flaxseed (whole) = 149g, so 1/2 cup = 149 × 0.500 = 74.5g.
Is 1/2 cup of flaxseed (whole) the same weight every time?
The weight can vary slightly depending on measuring technique. Spooned and leveled gives 74.5g. Scooped (packed) can be 10–20% heavier. Sifted gives a lighter weight. The USDA standard (spooned and leveled) of 74.5g is the most reliable baseline for recipes.
How do I accurately measure 1/2 cup of flaxseed (whole)?
For accuracy, use a kitchen scale and weigh 74.5g of flaxseed (whole). If using measuring cups, spoon the flaxseed (whole) lightly into a 1/2 Cup measuring cup and level off the top with a straight edge. Avoid scooping directly from the container, which compacts the ingredient and adds extra weight.
How does 1/2 cup of flaxseed (whole) compare to other ingredients?
1/2 cup of different ingredients varies significantly: Sunflower Seeds (shelled) = 64g, Pumpkin Seeds (pepitas) = 64.5g, Sesame Seeds = 72g. This is because each ingredient has a different density.