1 boiled egg has about 80 calories, and 1 fried egg has about 120 calories. Eggs are nutritious foods. An egg weighs about 50g, contains 7g of protein, 6g of fat and generates 82kcal of heat energy. The amino acid ratio of egg protein is very suitable for human physiological needs and easy to absorb, and the utilization rate is as high as over 98%.