BMR Calculator
Total number of calories you need in order to maintain your current weight
If you want lose weight, lower your calorie intake. (Reduce your calorie intake by 500 calories per day to lose 2.2 kgs in one week)
If you want to gain body weight, you need to consume more calories than you burn. (Eat an extra 500 calories per day to gain 2.2 kgs in one week)
BMR = 10 * weight (kg) + 6.25 * height (cm) - 5 * age(y) + 5 (man)
BMR = 10 * weight (kg) + 6.25 * height (cm) - 5 * age(y) - 161 (woman)