BMR Calculator
Calculate your Basal Metabolic Rate (BMR) and total daily energy expenditure (TDEE) using the Mifflin-St Jeor equation.
BMR Calculator
Calculate your Basal Metabolic Rate using the Mifflin-St Jeor equation
BMR (calories/day)
1,686
Sedentary
2,023
Light Exercise
2,319
Moderate Exercise
2,614
2,910
3,205
Save Configuration Snapshot
Save current parameters to your dashboard for instant one-click reloading.
About This Calculator & Guide
About the BMR Calculator
The BMR Calculator is a specialized online utility designed to help you calculate your basal metabolic rate using the mifflin-st jeor equation. free online bmr calculator. It performs calculations in real-time to provide immediate, reliable estimates for study, work, or daily tasks.
How to Use
Simply enter your parameters in the input fields of the calculator widget above. The tool evaluates the inputs instantly and displays the results in real-time. You can modify any value to check alternate scenarios and compare figures dynamically.
Data Privacy & Safety
All calculations are executed locally within your web browser. No inputs are sent to our servers or stored externally, ensuring your personal and financial details remain completely private and secure.
FAQ
Frequently Asked Questions
What is the difference between BMR and TDEE?+
BMR (Basal Metabolic Rate) is the calories burned just to stay alive at rest. TDEE (Total Daily Energy Expenditure) is the total calories burned per day, which multiplies BMR by an activity factor representing physical exercise and daily movement.
Can you increase your BMR?+
Yes, the most effective way to increase BMR is to build lean muscle mass. Muscle tissue is more metabolically active than fat tissue, meaning it burns more calories even when your body is at rest.
Which formula is used to calculate BMR?+
This BMR calculator defaults to the Mifflin-St Jeor equation, which is widely considered by dieticians to be the most accurate standard formula for general populations. We also support references to the Harris-Benedict formula.
How does age affect my BMR?+
BMR generally decreases with age. As humans age, muscle mass tends to decrease and metabolic function slows down, which naturally lowers the baseline energy required to sustain resting physiological operations.