This tool uses the Mifflin-St Jeor equation, considered one of the most scientifically reliable formulas. It takes your age, height, weight, gender, and activity level into account.

For healthy and sustainable weight loss, it's generally recommended to create a deficit of around 500 calories per day. This allows you to lose roughly half a kilo (1 lb) per week.

BMR is the amount of calories your body burns at complete rest just to perform its basic life-sustaining functions such as breathing, circulation, and cell production.