BMR calculator
The calories your body needs at complete rest: breathing, temperature, thinking.
Your result1,549 kcal / day
Calories your body burns at rest to keep vital functions running: breathing, regulating temperature, thinking. No movement included.
Talk to a doctorFormulas are population estimates. Your actual metabolism can vary ±10–15% by genetics, hormones, or body composition. Clinical calorimetry measures more precisely.
Common questions
Why does my BMR matter for weight loss?
It is the energy your body burns just staying alive. Any eating plan should stay at or above it. Dropping far below for weeks slows metabolism and costs muscle.
Can I raise my BMR?
Yes, slowly. Muscle tissue burns more at rest than fat, so strength training and adequate protein nudge it up over months. There is no quick fix.
Which formula does this calculator use?
Mifflin-St Jeor: the equation the Academy of Nutrition and Dietetics rates as most accurate for most adults. It can still be off by about 10% either way.
About BMR
How it works
This is your floor: the energy your body needs on a fully restful day. Eating below it for long periods is not sustainable.
Medical disclaimer. This calculator is for general information and is not medical advice. Talk to a doctor before changing your diet or starting a treatment.
Want a doctor's view?
A doctor reviews your case in under 2 hours on average.
Start consultationIf the doctor cannot treat you online, we refund the full amount.
The clinical information on this page was reviewed by: Dr. Alejandro Infante, General medicine, on 27 July 2026. Barcelona College of Physicians, no. 080869277 View profile
If the doctor does not approve treatment, we refund the full amount. Every consultation is fully refundable. How refunds work