Before calculation
Enter values and press Calculate to see the result.
Tool details
4 inputsInstant result
BMI / BMR Calculator
Enter height, weight, age, and sex to check BMI and BMR.
BMI categories are based on public health references.
BMR uses the Mifflin-St Jeor formula.
Calculation basis
Method
BMI = weight(kg) / height(m)^2, BMR = Mifflin-St Jeor equation
Basis year
Reference-based
Inputs
4 inputs
BMI categories are based on public health references.
BMR uses the Mifflin-St Jeor formula.
FAQ
Is BMI a precise body-fat metric?
No. BMI is a screening indicator and does not fully reflect body composition.
Do the rules change yearly?
The formulas do not, though guidance text may be updated by health organizations.