Use our free Basal Metabolic Rate Calculator
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Basal Metabolic Rate (BMR) Calculator


Use our Basal metabolic rate (BMR) Calculator (Excel required) to calculate the amount of energy you expend while at rest (which means you are doing virtually nothing (no exercise, no eating, etc.)). Enter numbers in the boxes below, and caculate your basal metabolic rate. This BMR calculator also includes a factor for your activity level (called the Harris-Benedict Equation) so that you can determine how many calories to consume if you want to lose weight.

If you can't see the spreadsheet (we have reports that it doesn't work with all browsers), then click here for a Downloadable Version.

To use this Web page interactively, you must have Microsoft® Internet Explorer 4.01 Service Pack 1 (SP1) or later and the Microsoft Office XP Web Components.

Click here to install the Office XP Web Components.

See the Microsoft Office Web site for more information.


Please note that these BMR calculations are an estimate only. To accurately calculate your Basal Metabolic Rate clinical studies are required.


Please also note that If you are overweight, this equation may overestimate the calories you require, so you should use a weight that is halfway between your current weight and your goal weight. For example, if you weigh 200 pounds and want to weigh 150 pounds, use 175 pounds in this formula, and then adjust it as you lose weight.

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