This calorie calculator estimates your Basal Metabolic Rate (BMR) and daily calorie needs, based on the Mifflin–St Jeor equation and your activity level. It also shows approximate calorie targets for weight loss and weight gain.
This calorie calculator uses the Mifflin–St Jeor equation to estimate your Basal Metabolic Rate (BMR), which is the number of calories your body needs at rest. It then multiplies BMR by an activity factor to estimate how many calories you burn per day based on your lifestyle.
The basic steps are:
These calculations are only estimates. Real-world results depend on body composition, health conditions, hormone balance, sleep, stress and many other factors. Always talk to a health professional before making major changes to your diet or training.
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