20 metric teaspoons
20.28 tsp
21 milliliters is 4.26 teaspoons.
Teaspoons are (in Europe) defined as 5ml (five milliliters). So there are twenty teaspoons of water in one deciliter and that weighs exactly 100 grams.
That is 2.2 teaspoons
1.28 metric teaspoons
2 metric teaspoons
92 metric teaspoons
6 metric teaspoons
45 milliliters is 9.13 teaspoons.
3 teaspoons = 14.8 mL
160 milliliters is 32.5 teaspoons.
Six teaspoons is about 29.6 mL