How many teaspoons in 4 ml?

Here's how to calculate that:

* 1 teaspoon = 4.929 ml (approximately)

To find out how many teaspoons are in 4 ml, you can divide 4 ml by the volume of one teaspoon:

* 4 ml / 4.929 ml/teaspoon = 0.81 teaspoons

Since we're dealing with a relatively small volume, it's safe to round this down to 0.8 teaspoons.