How many calories are in a teaspoon of honey? There are about 21 calories in a teaspoon of honey. Granulated sugar has about 15 calories per teaspoon. Honey is not just about sweetening your tea. It's great for soothing sore throats, hasantiseptic properties that have proven beneficial in healing wounds, and has a pH level that helps fight the growth of bacteria. In the US alone, bees produce over 200 million pounds of the syrupy substance. Each worker bee collects about a teaspoon of the nectar that eventually turns into honey. The honey's color varies according to the flower that the nectar came from: orange blossom, alfalfa and clover honey are lighter in shade and milder in flavor than honey made from buckwheat orlavender. September is National Honey Month.