BMR Calculator
Estimate basal metabolic rate (BMR) with the Mifflin-St Jeor equation. BMR is energy used at rest, shown in kcal/day; it is an educational estimate, not a nutrition prescription or diagnosis. Calculate it clearly with Figur.
BMR Calculator
Estimate basal metabolic rate (BMR) with the Mifflin-St Jeor equation. BMR is energy used at rest, shown in kcal/day; it is an educational estimate, not a nutrition prescription or diagnosis.
Method and assumptions
Figur converts weight to kg and height to cm and applies Mifflin-St Jeor: 10×kg + 6.25×cm − 5×age + 5 for men or −161 for women, estimating resting kcal/day.
- It applies only within the adult range and measurements accepted by the calculator.
- The estimate does not incorporate activity, digestion, body composition, illness, medicines, pregnancy, or individual goals.
- The result is rounded to the nearest kcal/day and may differ from clinically measured expenditure.
Educational information, not medical advice or a diagnosis. Consult a qualified health professional for care, symptoms, fertility, pregnancy, or nutrition needs.
Sources and references
Frequently asked questions
What is BMR?
BMR estimates the energy your body uses at rest before activity and digestion. Individual needs vary.
Can I use this for a medical diet?
No. Pregnancy, illness, medicines, body composition, and goals may need individualized advice from a qualified clinician or dietitian.