A rounded teaspoon is a larger but less precise measure, produced by heaping the ingredient as high as possible without leveling the ingredient off. A heaping or heaped teaspoon is an even larger inexact measure consisting of the amount obtained by scooping the dry ingredient up without leveling it off.
How many teaspoons equal a rounded teaspoon?
Let's say you're measuring a teaspoon of something granular, like flour, coffee or sugar. 1 tsp (or 1 level tsp) means that the top of what you're measuring is flat; no sugar goes above the top of the spoon. 1 rounded tsp means you scoop a spoonful of sugar, and let it form a small pile above the top of the spoon.
How much is a rounded teaspoon in grams?
One rounded teaspoon (tsp.) of sugar weighs approximately 5 grams. Bar, packet etc. sizes are those most common to the product unless otherwise stated.