Seed Conversion

How Many Grams in a Cup of Chia Seeds?

A cup of chia seeds weighs about 163 grams. Here is the complete cup-to-gram and gram-to-cup conversion table, plus the answer to common volume-to-weight questions for chia seeds.

1 Cup
163g
grams
1 Tablespoon
10.2g
grams
1 Teaspoon
3.4g
grams

Volume to Grams — Chia Seeds

Quick reference for the most common amounts. Numbers rounded to the nearest gram.

CupsGrams
1/4 cup40.8 g
1/3 cup54.3 g
1/2 cup81.5 g
2/3 cup109 g
3/4 cup122 g
1 cup163 g
1 1/2 cups245 g
2 cups326 g
3 cups489 g
4 cups652 g
TablespoonsGrams
1 tsp3.4 g
1 tbsp10.2 g
2 tbsp20.4 g
3 tbsp30.6 g
4 tbsp40.8 g
6 tbsp61.2 g
8 tbsp81.6 g
12 tbsp122 g
16 tbsp163 g

Grams to Cups — Chia Seeds

Have a recipe in grams and need cups? Use this reverse table.

GramsCupsTablespoons
25 g0.153 cups2.45 tbsp
50 g0.307 cups4.9 tbsp
75 g0.46 cups7.35 tbsp
100 g0.613 cups9.8 tbsp
150 g0.92 cups14.7 tbsp
200 g1.23 cups19.6 tbsp
250 g1.53 cups24.5 tbsp
300 g1.84 cups29.4 tbsp
500 g3.07 cups49 tbsp
1000 g6.13 cups98 tbsp

Why does chia seeds 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 chia seeds specifically, 1 cup weighs 163g. 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 chia seeds?

1 cup of chia seeds weighs approximately 163 grams.

How many grams in 1 tablespoon of chia seeds?

1 tablespoon of chia seeds weighs approximately 10.2 grams.

How many grams in 1 teaspoon of chia seeds?

1 teaspoon of chia seeds weighs approximately 3.4 grams.

How many grams are in 1/2 cup of chia seeds?

1/2 cup of chia seeds weighs about 81.5 grams.

How many grams are in 1/4 cup of chia seeds?

1/4 cup of chia seeds weighs about 40.8 grams.

How many tablespoons of chia seeds are in 100 grams?

100 grams of chia seeds is about 9.8 tablespoons.

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