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Calculate the Basal Metabolic Rate (BMR) and the Resting Metabolic Rate (RMR) 
On this page, the calculator allows the user to calculate the Basal Metabolic Rate (BMR) and the Resting Metabolic Rate (RMR) based on gender, age, weight and height. BMR and RMR are estimates of how many calories you would burn while at rest. The calculator will help you determine how this relates to your food intake and your weight loss or weight gain.  
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BMR & RMR Calculator  Calorie Calculator 
Basal Metabolic Rate (BMR) and Resting Metabolic Rate (RMR) Basal Metabolic Rate (BMR) and Resting Metabolic Rate (RMR) are estimates of how many calories your body needs if you were to do nothing.An accurate BMR is measured under very restrictive circumstances when a person is awake, but at complete rest, it requires that the person's sympathetic nervous system not be stimulated.A more common and closely related measurement, used under less strict conditions, is 

RMR. RMR and BMR are similar and yield extremely similar results. We can estimate the value of BMR/RMR using a same formula. Calculating BMR and RMR To calculate the number of calories you burn in a day while at rest, you can work out the Harris Benedict formula or The Mufflin equation for your own height, weight. The HarrisBenedict formula The Mufflin equation A more accurate formula is the KatchMcArdle formula based on lean body mass:
The
KatchMcArdle formula

