Approximately 50.
A teaspoon of sugar is about 4 grams, and a tablespoon is about 12 or 13 grams. The measurements aren't exact due to differences in compactness, grain size, moisture content, etcetera. So, sugar is nearly 4 kilocalories (big C Calorie, or food calorie) per gram. At 12 grams it is 48 Calories, and at 13 it is 52 Calories.
15
Lots
45 calories.
720 calories based on 15 calories per teaspoon.
1520
829 calories.
Raw sugar or natural brown sugar contains approximately 11 calories per teaspoon (4 grams).
1 cup of packed brown sugar has 829 calories.
There are 415 calories in a 1/2 cup of packed Brown Sugar.
Cinnamon will have virtually no calories in it (only about 2 or 3), and the brown sugar will be 15 calories per teaspoon you add.
38 calories in 10g of sugar
A tablespoon of sugar consists of about 45 calories. The more sugar involved, the higher the caloric intake.