The BMR calculator will then adjust your BMR by various factors to show estimates of the calories you burn a day based on your activity level. One of the useful properties of computing such an estimate of your BMR is that you can then use this to esitimate the calories you burn a day. The calculator will return an estimate of your BMR using both of these methods.

Some studies have shown the equation by MD Miffin and ST St Jeor to be more accurate here, while the Harris Benedict equation was created in 1919 and has historical significance. Similarly to the above formula by MD Miffin and ST St Jeor, weight is in Kilograms, height is in centimeters and age is in years. s is a factor to adjust for gender and adopts the value +5 for males and -161 for females.Īs an alternative method of calculation, the Harris Benedict equations adopt separate equations for men and women as follows:īMR = (13.7516 x weight + 5.0033 x height – 6.755 x age + 66.473) kcal/dayīMR = (9.5634 x weight + 1.8496 x height – 4.6756 x age + 655.0955) kcal/day Here, weight is in Kilograms, height is in centimeters and age is in years. The equation introduced by MD Miffin and ST St Jeor is as follows:īMR = (9.99 x weight + 6.25 x height – 4.92 x age + s ) kcal/day These equations allow an approximation of your BMR to be computed from the above data. There are various methods to calculate an estimate of your BMR and the calculator will return two estimates based on the formulas developed by MD Mifflin and ST St Jeor as well as the Harris-Benedict equation. You are basically looking at the calories you burn a day when at rest with no digestion occurring.

“the amount of energy expended while at rest in a neutrally temperate environment, in the post-absorptive state (meaning that the digestive system is inactive, which requires about twelve hours of fasting in humans)” Your Basal Metabolic Rate is defined on Wikipedia as: The calculator will then calculate an estimate of your BMR and adjust you BMR by various factors to allow you to see an estimate of the calories you burn a day based on your level of activity. To use the calculator, simply input details about yourself such as you age, gender, weight and height.

The BMR calculator allows you to calculate your Basal Metabolic Rate (BMR) as well as other information relating to the calories you burn a day.

Myfitnesspal bmr calculator