The results show you how many calories you need to eat a day in order to maintain your weight, but if you're trying to gain or lose weight you need to adjust your daily calorie intake as well as your activity level.

This simple, easy-to-use interface calculates your BMR. What is BMR? That’s simple, your basal metabolic rate is an estimation of how many calories your body would burn while at rest for a full day.

In this app, we guide you through entering your height, weight, age, and gender to provide you with your BMR. In the last step of this calculator, you can see how different activity levels and your BMR affect the amount of calories you should consume every day.