Basal Metabolic Rate (BMR)

The basal metabolic rate, or BMR, represents the amount of energy (in calories) that your body expends at rest to maintain its vital functions. Using the Mifflin-St Jeor formula, our calculator provides an accurate estimate of your BMR based on your age, weight, height, and gender. Fill in the fields below to discover how many calories your body consumes at rest.

System

Weight

Height

Age

Gender

Share calculation and page on

1. Introduction to BMR (Basal Metabolic Rate)

The Basal Metabolic Rate, commonly referred to as BMR, represents the amount of energy, expressed in calories, that your body requires at rest to ensure its vital functions such as breathing, digestion, and thermal regulation.

2. Importance of Knowing Your BMR

Knowing your BMR is essential for anyone wanting to effectively manage their weight, whether for loss, gain, or maintenance. It serves as a starting point to determine the caloric intake required based on goals and physical activity.

3. The Mifflin-St Jeor Formula

This formula is widely recognized for its accuracy. It takes into account factors such as gender, age, weight, and height to estimate the BMR. While other formulas exist, the Mifflin-St Jeor is often favored for its reliability.

4. How to Use the Calculator

Simply enter your personal data into the appropriate fields: age, gender, weight, and height. Once the information is provided, the calculator will give you an estimate of your BMR.

5. Limitations and Specific Cases

Although this calculator is an excellent tool to get a BMR estimate, it has its limitations. It may not necessarily be suitable for: Individuals with specific medical conditions People following a particular diet for medical reasons High-level athletes or individuals with an atypical body composition It's always recommended to consult a health professional or nutritionist for a more personalized evaluation.

6. Conclusion

BMR is a key element in health and weight management. However, it's important to remember that each individual is unique, and it's essential to consider other factors, such as physical activity, to get a complete picture of energy needs. Use this calculator as a starting point and don't hesitate to seek expert advice.