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How Much Is 18 Teaspoons of Flaxseed in Grams?

18 teaspoons of flaxseed equals 55.50 g. Flaxseed has a density of 148g per cup (3.08g per teaspoon), which means it's relatively light compared to other common cooking ingredients. For comparison, 18 teaspoons of honey would be 127.5 g.

18 teaspoons of flaxseed
=
55.50g
Result using all teaspoon standards info
55.50 g (US) 56.30 g (Metric Teaspoon) 66.65 g (Imperial Teaspoon)
18 teaspoons of flaxseed is also
55.50

Formula and Step-by-Step

teaspoons × 3.08g/tsp = grams
  1. Start with 18 teaspoons of flaxseed
  2. 1 teaspoon of flaxseed = 3.08g
  3. 18 × 3.08 = 55.5g

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

Ground and whole flaxseed have different densities. Make sure you are using the form your recipe specifies.

Flaxseed at Different Amounts

How flaxseed scales across common teaspoons measurements. Your amount (18 teaspoons) is highlighted.

1.5 tsp4.63 g2 tsp6.17 g3 tsp9.25 g4 tsp12.33 g5 tsp15.42 g6 tsp18.5 g8 tsp24.67 g18 tsp55.5 g

For reference, 18 teaspoons of flaxseed (55.5g) is close in weight to a whole large egg (57g).

Other Amounts of Flaxseed

Teaspoons US Grams Metric Teaspoon Imperial Teaspoon
0.25 teaspoons 0.77 g 0.78 g 0.93 g
0.5 teaspoons 1.54 g 1.56 g 1.85 g
1 teaspoon 3.08 g 3.13 g 3.70 g
1.5 teaspoons 4.63 g 4.69 g 5.55 g
2 teaspoons 6.17 g 6.26 g 7.41 g
3 teaspoons 9.25 g 9.38 g 11.11 g
4 teaspoons 12.33 g 12.51 g 14.81 g
5 teaspoons 15.42 g 15.64 g 18.51 g
6 teaspoons 18.50 g 18.77 g 22.22 g
8 teaspoons 24.67 g 25.02 g 29.62 g
18 teaspoons 55.50 g 56.30 g 66.65 g

Understanding the Units

What is a Teaspoon?

A US teaspoon is 4.929 ml, a metric teaspoon is exactly 5 ml, and an imperial teaspoon is 5.919 ml. The metric and US versions are nearly identical (1.4% difference), but the imperial teaspoon is 20% larger. For most spices the difference is negligible, but for leaveners like baking powder it can affect the result.

What is a Gram?

Grams are the preferred unit in professional kitchens and bakeries because they allow exact recipe scaling. To double a recipe, simply double the gram values. No need to worry about how tightly an ingredient is packed into a cup.

Frequently Asked Questions

About 55.50 g, based on flaxseed having a density of 148g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of teaspoons by 3.08 (grams per teaspoon for flaxseed). For 18 teaspoons: 18 × 3.08 = 55.50 g.
For the most accurate results, weigh flaxseed on a kitchen scale. If measuring by volume, spoon the ingredient into the measuring spoon and level it off with a straight edge rather than scooping directly.
Weight-per-cup values vary because of differences in how the ingredient is measured (spooned vs scooped), grind size, moisture content, and settling during storage. Our values use standardized measurement methods from established culinary references.
Reverse the conversion: 55.50 g ÷ 3.08 = 18 teaspoons. Or use the Grams to Teaspoons converter.