Step-by-step instructions
- Enter or select Weight (kg).
- Enter or select Height (cm).
- Enter or select Age.
- Enter or select Sex.
- Tap Calculate.
- Review the result shown directly below the calculator.
BMR Calculator
Estimate basal metabolic rate using the Mifflin-St Jeor equation.
How to use the BMR Calculator
Estimate basal metabolic rate using the Mifflin-St Jeor equation.
What the inputs mean
- Weight (kg)
- Enter the requested weight or mass using the unit shown or a consistent unit.
- Height (cm)
- Enter the measurement shown, using consistent units.
- Age
- Enter the value requested by this field label.
- Sex
- Choose the option that best matches your calculation.
Formula or calculation method
The calculator applies the standard mathematical relationship for the labeled inputs and returns the computed result automatically.
Example
Try entering realistic values for Weight (kg) and Height (cm), then tap Calculate to see how the result changes.
How to understand the result
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.