Nuts, Seeds & Butters
Convert teaspoons of chia seeds to grams
One teaspoon of chia seeds weighs about 3.54 g, and half a teaspoon comes to roughly 1.77 g. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 tsp of chia seeds =
3.54 g
- oz
- 0.125
- kg
- 0.0035
- lb
- 0.0078
Chia Seeds: 170 g per US cup · USDA FoodData Central. Measure dry. Chia absorbs up to 12 times its weight in liquid once hydrated.
Full chia seeds chart →Chia Seeds at a glance
Every number on this page comes from a single figure: 170 grams per US cup (USDA FoodData Central).
- 1 cup
- 170 g
- 1 tablespoon
- 10.6 g
- 1 teaspoon
- 3.54 g
- 1 cup in ounces
- 6 oz
- 100 g in cups
- 0.588 cups
- Density
- 0.72 g/ml
teaspoons to grams chart for chia seeds
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Teaspoons (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1/4 tsp | 0.885 g | 0.031 oz | 0.0020 lb |
| 1/2 tsp | 1.77 g | 0.062 oz | 0.0039 lb |
| 3/4 tsp | 2.66 g | 0.094 oz | 0.0059 lb |
| 1 tsp | 3.54 g | 0.125 oz | 0.0078 lb |
| 1 1/2 tsp | 5.31 g | 0.187 oz | 0.012 lb |
| 2 tsp | 7.08 g | 0.25 oz | 0.016 lb |
| 3 tsp | 10.6 g | 0.375 oz | 0.023 lb |
| 4 tsp | 14.2 g | 0.5 oz | 0.031 lb |
| 6 tsp | 21.3 g | 0.75 oz | 0.047 lb |
| 8 tsp | 28.3 g | 0.999 oz | 0.062 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat chia seeds as 170 g per US customary cup, which works out to 0.719 g/ml. From there:
- Your teaspoons figure is converted into millilitres or grams using standard unit sizes (tsp = 4.93 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 5/8 cups.
Measuring chia seeds accurately
Measure dry. Chia absorbs up to 12 times its weight in liquid once hydrated.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many grams are in 1 teaspoon of chia seeds?
1 teaspoon of chia seeds is 3.54 g. This is based on a density of 170 g per US cup.
How many grams are in 2 teaspoons of chia seeds?
2 teaspoons of chia seeds is 7.08 g, and 1.77 g for half a teaspoon.
How much is 100 g of chia seeds in cups?
100 g of chia seeds is about 5/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for chia seeds?
Measure dry. Chia absorbs up to 12 times its weight in liquid once hydrated.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.