Why this calculator exists
Most people don’t eat exactly 100 grams of seeds. They eat a spoon. A handful. A “maybe that was too much” scoop.
This tool does the math for you - set the serving size and get the nutrition.
Free Tool
Seed Calorie Calculator
Calculate calories + macros by tbsp, tsp, grams, or ounces - and compare seeds side-by-side.
Pick a second seed to compare. Or leave it as “None”.
Tablespoon grams vary by seed. This tool uses a sensible average per seed.
Results
Calories & macros
For the selected serving size. If you want iron, magnesium, calcium etc, use the Seed Nutrition Calculator.
| Metric | Seed #1 | Seed #2 |
|---|
Tip: For comparisons like chia vs flax, see Chia vs Flax Seeds.
Quick answers
Is 1 tablespoon always the same weight?
No. A “tbsp” can be heaping or level, and seeds have different densities. This calculator uses a reasonable average grams-per-tablespoon for each seed.
Why do chia calories look different on different sites?
Usually it’s serving size differences (tbsp grams), rounding, or whether they list “dry” vs prepared recipes. This tool uses per-100g nutrition and converts.
Does soaking chia change calories?
No. It changes texture and volume, not calories.