One serving packet of granulated sugar contains 11 calories.
There are varieties of sugar. Maple sugars contains 1,481 kilojoules per 100g (419 cals per oz) and Turbinado sugar has 1,670 kilojoules per 100g (473 cals per oz), for instance. A normal value is...
15 calories per teaspoon.
Tea has 5 calories per cup and then there are 15 calories per teaspoon or per cube of sugar added.
it matters how much sugar is in the packet
There are 15 calories in 1 tsp You'll have to do the math but I can tell you that: 3tsp = 1Tblsp 16Tblsp = 1 cup. Good luck!