According to Domino Sugar, one sugar packet is the equivalent of 1 teaspoon of granulated sugar. A pound of granulated sugar measures out to just about 2 1/4 cups.Know More
There are 48 teaspoons of granulated sugar in a cup, which means that 1 pound of granulated sugar is equal to about 108 teaspoons of sugar. Likewise, a standard 100-packet box of granulated sugar packets would contain just over 2 cups of granulated sugar. It is important to remember, however, that the measurements provided are for granulated sugar. Confectioner's sugar and brown sugar are measured differently due to their differences in consistency from granulated sugar.