Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can calculate how many calories to eat to maintain your body weight. The daily calorie requirement of an individual depends on his/ her sex, age, body weight and physical activity level.
Android: Use this calorie calculator offline with our all-in-one calculator app.
The calculation for calorie intake is the value of the basal metabolic rate (BMR) multiplied by a coefficient for physical activity level.
|Sedentary||Office worker getting little or no exercise||1.4|
|Moderately active||Construction worker or person running one hour daily||1.7|
|Vigorously active||Agricultural worker (non mechanized) or person swimming two hours daily||2|