BMR Calculator

BMR Calculator Tool

In our world today, obesity is a global epidemic. Thankfull we know there are a key few people out there who are taking their health and weight very seriously. To help support that – we’ve put together our fantastic BMR calculator. This tool will help you quickly, simply, and easily understand what your Basal Metabolic Rate (BMR) is – so you can use it as you compute your (or other’s) BMR, caloric expenditure, and caloric needs. We know there are so many uses for this information and that’s part of the reason we made a tool that could be universal in it’s appeal as well as fast in it’s usage. Go ahead – give it a try. In under 10 second you’ll have a result with not extra buttons to press. If you like that one – give our other health and fitness calculators a shot – we think they’ll really be something valuable for you.

BMR Calculator – Key Insights and Importance


BMR Calculator, also known as Basal Metabolic Rate Calculator, helps estimate the number of calories you burn when you are at rest. It helps develop a better understanding of the number of calories needed to maintain, lose or gain weight.

Quick summary:

  • Basal Metabolic Rate (BMR) Calculator estimates resting calorie burn.
  • Knowing your BMR can guide your nutritional intake for weight control.
  • The calculator is an important tool for personal wellness programs.

History of measuring BMR Calculation

The concept of BMR first originated in the early 20th century. The initial methods involved direct calorimetry to measure heat produced by the body at rest. Over the years, these procedures became more sophisticated and updated.

The link between BMR Calculation and Weight Management

BMR Calculation is linked directly to weight management. Since it measures the energy required to perform vital body functions at rest, the BMR gives you the number of calories your body needs to maintain its current weight. Hence, understanding your BMR can contribute to strategic food intake and exercise plans for weight loss, gain or maintenance.

Common reasons to calculate your BMR

Knowing your BMR can benefit you in several ways. These include:

  • Better weight management
  • More effective diet plans
  • Enhanced exercise regimes
  • Insight into your overall metabolic health

Do you know?

Here are some intriguing facts about BMR calculation:

  1. Your BMR typically decreases as you age.
  2. Males often have a higher BMR than females due to a higher muscle mass.
  3. Your BMR may vary based on your genetics.
  4. The smallest recorded BMR is in the hummingbird, which has a BMR of 207 times its body weight.
  5. The largest recorded BMR is in the blue whale, which needs over 1 million calories per day to survive.
  6. Most diet plans use BMR calculations to determine calorie intake.
  7. Stress and illness can increase your BMR.
  8. The standard method for calculating BMR is the Harris-Benedict equation.
  9. Measuring BMR through direct calorimetry is less common today, replaced by indirect calorimetry or estimations using equations.
  10. BMR accounts for 60-75% of total calorie burn in a day.

Zippy Calc Key Benefits

  • FAST

    Optimized for SPEED. We pride ourselves on having FAST calculators available for you. We know you’ve got other important things to do and that’s why we’ve reduced all excess button clicks so you can be in, out, and on your way.


    No charge to you. We get paid and keep the lights on via our advertisers on the site (which we try to make as least intrusive as possible)


    Here’s a tidbit. We include stats and interesting facts alongside of each of our calculators. These may be helpful to you along your way and provide you an insight and link to a resource to help you on your way.


    Chose not to be boring. We’ve found that a lot of our competitors (yes, there are online calculator competitors, can you believe the world we live in) have very BORING websites. We’re not trying to be boring. We want you to have a chuckle.