100 grams of white toasted bread has 293 calories while one slice has 64 calories. With margarine, it contains 60 calories, peanut butter has 95 calories, cream cheese and jam have 50 calories each.
The amount of calories may vary according to specific brands, but generally, one slice of bread would have about 70 calories and one tablespoon of jelly would have about 50 calories. So the total calories in one slice of toast with jelly (no butter) wiki.answers.com