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 basal metabolic rate (BMR), which is the bare minimum of energy or calorie required by the body at rest to sustain life functions.
Android: Use this bmr calculator offline with our all-in-one calculator app.
The BMR formula in our calculation is based on the The Mifflin St Jeor Equation:
BMR = (10m/1kg + 6.25h/1cm - 5a/1year + s) kcal/day
m = weight
h = height
a = age
s = +5 for males and -161 for females
BMR value can be used for estimating your daily calorie requirement depending on your body weight and lifestyle. This number can be useful for moderating your calorie intake if you are on a weight-loss diet.