We offer you the optimal calorie calculator online, through which you can know the calories you need in your nutrition for various goals, whether it is for weight stability, weight loss or even weight gain according to the most famous equations used in the field of nutrition. You can use the calculator as a starting point. Make sure that all English numbers and information are entered correctly, especially your choice of formula for calculating calories. It is preferable to use the Katch- McArdle formula if your fat content is higher than 25% for men and above 30% for women. It is okay to use the first equation in the absence of a percentage test.