Chia Seeds: How Many Grams in a Cup?
1 US tablespoon of dry chia seeds weighs about 9 g when measured level. A rounded or packed tablespoon may weigh closer to 10–15 g, which is why nutrition labels and other websites may show different numbers. Chia seeds also absorb up to 10–12 times their weight in water, so always measure them dry before adding liquid.
Quick convert
- US cup = 236.588 mL
- 1 tbsp = 14.787 mL
- 1 tsp = 4.929 mL
Reference table
| Cups | g |
|---|---|
| 0.3 | 35 |
| 0.5 | 70 |
| 0.8 | 105 |
| 1.0 | 140 |
| 1.5 | 209 |
| 2.0 | 279 |
Why do some sources say 10 g, 12 g, or 15 g? Chia seed weight per tablespoon varies depending on whether the spoon is level, rounded, packed, or based on a nutrition-label serving size. ChefSolver uses a level US tablespoon and a density-based calculation (0.59 g/mL), so we estimate 1 tablespoon of dry chia seeds at 9 g. For nutrition tracking or baking, weighing chia seeds in grams is more accurate than using spoons.
Values are for dry whole chia seeds, level US tablespoon, density 0.59 g/mL (USDA FoodData Central). Soaked or packed chia seeds will weigh more.
FAQ
- How many grams is 1 tablespoon of chia seeds?
- 1 level US tablespoon of dry chia seeds weighs about 9 g, based on a density of 0.59 g/mL (USDA FoodData Central, spoon-and-level method).
- Is 1 tablespoon of chia seeds 9 g or 15 g?
- It depends on how the spoon is filled. A level US tablespoon gives 9 g. A rounded or packed tablespoon can weigh 10–15 g. Nutrition labels sometimes use a rounded-spoon serving, which is why values differ across sources.
- How many grams are in 2 tablespoons of chia seeds?
- 2 level US tablespoons of dry chia seeds weigh about 17–18 g.
- Should I measure chia seeds by spoon or by weight?
- By weight. Chia seeds are small and their volume changes easily with packing and settling. A kitchen scale gives the most consistent results, especially for chia pudding where the chia-to-liquid ratio directly affects gelling.
- How many tablespoons is 28 g of chia seeds?
- 28 g of dry chia seeds is about 3 tablespoons (3 × 9 g = 27 g). This equals approximately 1 oz and matches the common nutrition-label serving size.
- Do soaked chia seeds weigh more than dry chia seeds?
- Yes. Chia seeds absorb up to 10–12 times their weight in water. 1 tablespoon of dry chia seeds (9 g) can absorb roughly 90–110 g of water when fully hydrated. Always measure chia seeds dry before adding liquid.
- Black vs. White Chia Seeds?
- Nutritionally and structurally, they are virtually identical. The choice is purely aesthetic based on the look you want for your dish.