Calories in Flaxseed
1 whole tsp of flaxseed (3 g) has 18 calories, with 0.6 g of protein, 1.4 g of fat and 1 g of carbohydrates. Per 100 grams, flaxseed has 534 calories.
Most of the calories in flaxseed come from fat (67%). Flaxseed is a good source of protein, with 18 g per 100 g, high in fiber (27 g per 100 g) and a good source of potassium. It has more calories per gram than 33% of the 167 nuts and seeds in our database.
Flaxseed Calorie Calculator
Your meal
Add portions from any food page to build a meal total. It stays in this browser.
Flaxseed calories by serving size
Common amounts of flaxseed with calories and macros. Tap a row for its full nutrition page.
| Serving | Weight | Calories | Protein | Fat | Carbs |
|---|---|---|---|---|---|
| 1 tsp | 3 g | 13 | 0.5 g | 1.1 g | 0.7 g |
| 5g | 5 g | 27 | 0.9 g | 2.1 g | 1.4 g |
| 1 tbsp | 7 g | 37 | 1.3 g | 3 g | 2 g |
| 1 whole tbsp | 10 g | 55 | 1.9 g | 4.3 g | 3 g |
| 2 whole tbsps | 21 g | 110 | 3.8 g | 8.7 g | 5.9 g |
| 1 oz | 28 g | 151 | 5.2 g | 12 g | 8.2 g |
| 100g | 100 g | 534 | 18 g | 42 g | 29 g |
| 4 oz | 113 g | 606 | 21 g | 48 g | 33 g |
| 1 whole cup | 168 g | 897 | 31 g | 71 g | 49 g |
| 2 whole cups | 336 g | 1794 | 61 g | 142 g | 97 g |
Flaxseed vs similar foods
Calories per 100 g compared with other nuts and seeds.
Flaxseed: common questions
How many calories are in 1 whole tsp of flaxseed?
1 whole tsp of flaxseed (3 g) has 18 calories.
How many calories are in 100 grams of flaxseed?
100 grams of flaxseed has 534 calories, 18 g of protein, 42 g of fat and 29 g of carbohydrates.
How much protein is in flaxseed?
Flaxseed has 18 g of protein per 100 g. 1 whole tsp of flaxseed gives you 0.6 g.
Is flaxseed high in calories?
Flaxseed has 534 calories per 100 g. It has more calories per gram than 33% of the 167 nuts and seeds in our database. A 2,000 calorie day fits about 375 g of it.
More about flaxseed
Calories by amount
Amount for a target
Weights and conversions
Compare with
Source: USDA FoodData Central, SR Legacy. FDC ID 169414. Original description: Seeds, flaxseed. Portion weights are USDA household measures.