So, how much is 40 grams of sugar? If you go to a restaurant and order tea, some people add two or three packets of sugar (okay, some people stir in six packets of sugar, but we’re talking about the average person). How many packets of sugar make up 40 grams? Of course, not every packet of sugar is the same, but a little research of the published nutritional information from fast food restaurants in the United States revealed that a packet contains about 4 grams of sugar, and those 4 grams of sugar have 15 calories. This means that there about ten packets of sugar in a can of regular soda, accounting for the 150 calories. That’s a lot of sugar!