Is there an easy way to convert teaspoons into grams?

There is no easy way to convert teaspoons to grams is because they measure different things. A teaspoon is a unit for measuring volume, while a gram measures mass.

The conversion rate for teaspoons to grams depends on what is being measured. For example, 1 teaspoon of table salt weighs almost 6 grams on average, but 1 teaspoon of white sugar weighs only around 4 grams. The exact conversion rate depends on the density. Depending on the situation, it may be possible to simply measure in volume rather than mass, or it may require a conversion based on the density of the substance being measured.