A 1.55-ounce Hershey bar measures approximately 5 3/8 inches in length, 2 1/8 inches in width, and 1/8 inch in thickness. The 43-gram bar has approximate metric dimensions of 13.6 centimetres in length, 5.5 centimetres in width, and 0.5 centimetres in height.
A Hershey bar has 210 calories per serving, 110 of which come from its 13 grammes of fat. This is almost 20% of the daily value recommended for fat. Additionally, this bar has 26 grammes of carbohydrates and 3 grammes of protein. A Hershey bar includes 8% of the daily intake for calcium, 4% of the daily value for dietary fibre, and 2% of the daily value for iron.