Fitness Calorie Calculator

Kevin Cen


Welcome to the Fitness Calorie Calculator!


  • Basal metabolic rate (BMR) is the amount of energy needed while resting in a temperate environment when the digestive system is inactive.

  • In other words, BMR can be described as the estimated number of calories a person can consume in a day to maintain their body-weight, assuming they remain at rest.

  • To determine how many calories you should generally consume per day, you can take your BMR value and multiply it by a constant.

    • This constant is based on how much physical activity you engage in on a regular basis.

This calculator uses the Mifflin-St Jeor Equation for calculating one's basal metabolic rate (BMR):

For men:
BMR = 10W + 6.25H - 5A + 5

For women:
BMR = 10W + 6.25H - 5A - 161


Where 'W' is body weight (kgs), 'H' is body height (cm), and 'A' is age (years).


Fill in the form below to calculate your BMR:

Hover over each question to learn about its purpose in determining one's BMR.

Question 1:

Please select one radio button.

A gender was not selected.
Please choose a gender.
Question 2:

Please enter in the textbox below (in pounds).

lbs
Please type in a nonegative numeric value for the weight.
Question 3:

Please enter your height in the textbox below (in feet and inches).

ft
Please type in a nonegative numeric value for the feet.
in
Please type in a nonegative numeric value for the inch.
Also, do not enter an inch value that could be cleanly represented in feet.
Question 4:

Please select an age from the dropdown (in years).

An age was not selected.
Please select an age.
Question 5:

Select all checkboxes that apply and choose the most specific answer(s).

Make sure that you have chosen at least one checkbox.


Learn More About the Mifflin-St Jeor Equation