One level tablespoon of chia seeds weighs about 9.2 g. The word level matters, because a heaped spoon can hold far more than a level one, and the figure on this page assumes the spoon is filled spooned and levelled. The arithmetic behind it is 148 ÷ 16 = 9.2 g, since a cup of chia seeds weighs 148 g and a tablespoon is one sixteenth of a cup.
The source is King Arthur Baking, and every weight on this page is approximate. For baking and for any recipe where the balance of ingredients matters, weigh the ingredient rather than trusting the spoon alone.
About Chia Seeds
Tiny seeds that gel in liquid and are rich in omega-3. Chia pudding, egg replacement, smoothies and baking. That is why it shows up in recipes measured by the tablespoon: it is used in amounts too small for a cup measure to be practical, yet large enough that guessing the weight can throw a dish off. Knowing that one tablespoon weighs 9.2 g lets you move between the spoon and the scale without stopping to work it out.
Storage. Airtight container, cool and dry, up to 2 years.
Worked examples
A granola batch for the week
A tray of homemade granola uses 8 tablespoons of chia seeds, about 74 g, mixed through the oats before baking. Eight tablespoons across a whole tray means a spoonful of granola has a few pieces in it, which is the right balance. Stir the granola halfway through baking so the nuts on top do not burn while the ones underneath stay pale.
A smoothie or a breakfast bowl
A breakfast bowl or a smoothie for one person takes 2 tablespoons of chia seeds, about 18.5 g, sprinkled on top or blended in. Two tablespoons is a sensible single serving: enough to add flavour and texture without overwhelming the bowl. If you are blending them in, add them last and pulse briefly, so they break up without turning the whole bowl gritty.
A batch of cookies
A batch of cookies for a dozen people uses 4 tablespoons of chia seeds, about 37 g, folded into the dough at the end. Four tablespoons spread through a whole batch gives a nut in most bites without making the cookies crumbly. Chop them roughly rather than finely, so they keep some texture, and fold them in last so they do not get crushed by the mixing.
Tablespoon to grams table
| Tablespoons | Grams |
|---|---|
| 1 teaspoon | 3.1 g |
| 1 tablespoon | 9.2 g |
| 2 tablespoons | 18.5 g |
| 3 tablespoons | 27.8 g |
| 4 tablespoons | 37 g |
| 5 tablespoons | 46.2 g |
| 6 tablespoons | 55.5 g |
| 7 tablespoons | 64.8 g |
| 8 tablespoons | 74 g |
| 9 tablespoons | 83.2 g |
| 10 tablespoons | 92.5 g |
| 11 tablespoons | 101.8 g |
| 12 tablespoons | 111 g |
| 13 tablespoons | 120.2 g |
| 14 tablespoons | 129.5 g |
| 15 tablespoons | 138.8 g |
| 16 tablespoons | 148 g |
One tablespoon is one sixteenth of a cup, so every figure above is the cup weight of 148 g divided by 16 and rounded to one decimal place. Sixteen tablespoons make one cup, which is why the last row of the table matches the cup weight exactly. All figures are approximate; verify with a kitchen scale when it matters.
Cups to grams for reference
Most recipes switch between cups and tablespoons, so here is the same ingredient measured in cups. Use this table when a recipe gives a cup amount and you want to weigh it, or when you have already measured in tablespoons and want to check the total.
| Cups | Tablespoons | Grams |
|---|---|---|
| 1/4 cup | 4 tablespoons | 37 g |
| 1/3 cup | 5 tablespoons plus 1 teaspoon | 49.3 g |
| 1/2 cup | 8 tablespoons | 74 g |
| 2/3 cup | 10 tablespoons plus 2 teaspoons | 98.7 g |
| 3/4 cup | 12 tablespoons | 111 g |
| 1 cup | 16 tablespoons | 148 g |
| 1 1/2 cups | 24 tablespoons | 222 g |
| 2 cups | 32 tablespoons | 296 g |
How the figure is measured
Chia Seeds is measured spooned and levelled: spoon it loosely into the tablespoon, then sweep the top flat with the back of a knife. Do not scoop directly from the bag or jar, because scooping packs the ingredient down and a scooped spoon can weigh far more than a spooned one. The spoon-and-level method is the one the source data assumes, so it is the method that makes the numbers on this page true.
The cup weight of 148 g comes from King Arthur Baking. The tablespoon figure is that cup weight divided by 16, rounded to one decimal place, which is why the table is consistent from one row to the next. All results are approximate: brand, grind, humidity and temperature all move the real weight a little, so when a recipe has to work the first time, weigh the ingredient on a kitchen scale and use these numbers as a guide.
Storage and keeping
Storage. Airtight container, cool and dry, up to 2 years. Keeping chia seeds properly stored matters for the conversion as well as for the flavour, because an ingredient that has absorbed moisture or dried out weighs differently per spoon than a fresh one. Store it as the data file recommends and check it before you measure: if it has clumped, hardened or gone stale, the spoon weight will be off and the recipe will be too.
Buy chia seeds in amounts you will use within its storage life, and keep it in a sealed container rather than an open bag, which lets in air and moisture. Label the container with the date you opened it, so you are not guessing later whether it is still good. A fresh ingredient measures more predictably than an old one, and predictable measuring is what makes the numbers on this page useful in a real kitchen.
Frequently asked questions
How many grams is a tablespoon of chia seeds?
One tablespoon of chia seeds weighs 9.2 g, approximately. The figure comes from dividing the cup weight of 148 g by 16, since one tablespoon is one sixteenth of a cup. One teaspoon is 3.1 g, and one cup is 148 g.
How much does 37 g of chia seeds work out to in tablespoons?
That is 4 tablespoons, which weigh 37 g. Four tablespoons is a quarter of a cup, so it is a convenient amount to measure with a quarter-cup measure if you have one. The same arithmetic works for any amount: divide the grams by 9.2 to get tablespoons.
Should I chop chia seeds before measuring a tablespoon?
Measure them the way the recipe lists them. If the recipe says chopped nuts, chop first and then measure, because chopping changes how they pack into the spoon. The figure on this page, 9.2 g per tablespoon, assumes the nuts are measured as they come, spooned and levelled, so a chopped measure will weigh slightly more per spoon.
How many grams is a tablespoon of chia seeds?
One tablespoon of chia seeds weighs 9.2 g, approximately. The figure comes from dividing the cup weight of 148 g by 16, since one tablespoon is one sixteenth of a cup. One teaspoon is 3.1 g, and one cup is 148 g.
How many grams is a teaspoon of chia seeds?
One teaspoon of chia seeds weighs 3.1 g, approximately. A teaspoon is a third of a tablespoon, so the teaspoon weight is the tablespoon weight of 9.2 g divided by three. For very small amounts, the teaspoon is the better tool, because it is easier to level accurately than a tablespoon.
Common mistakes to avoid
- Scooping directly from the bag, which packs the ingredient down and makes a spoonful weigh far more than a spooned one.
- Leaving the spoon heaped instead of levelling it, which adds an unpredictable extra amount every time.
- Measuring a damp or clumped ingredient without breaking it up first, which leaves air pockets and a short measure.
- Using a regular eating spoon instead of a measuring tablespoon, since eating spoons vary widely in size.
The thread running through all of these is the same: a tablespoon is only a standard measure when it is filled in the standard way. Measure chia seeds spooned and levelled, level it off, and check the weight on a scale when the recipe has to be right, and the numbers on this page will serve you well.