1.5 teaspoons is 114 drops.
Three US teaspoons equals 295.74 drops.
90 milliliters is 18 1/4 teaspoons.
That is approximately 18 teaspoons.
That is approximately 90 teaspoons.
288
A measuring cup is 16 tablespoons or 48 teaspoons or 3648 drops. 1 tablespoon is 3 teaspoons. 1 teaspoon is 76 drops.
Four US teaspoons equates to about 394 drops.
140 drops equates to 1.4 US teaspoons.
It depends on the size of the drop.
4table spoons
90