BMR Calculator

Last updated: 2026-08-24

BMR Calculator — Calculate basal metabolic rate.
Inputs
Result
Enter values and press Calculate

How to use it

  1. Enter weight, height and edad
  2. Apply formula Mifflin-St Jeor to hombre and mujer
  3. Multiply BMR per 1.2 (sedentario) or 1.55 (asset) to TDEE
  4. Compare results between géneros

Common mistakes

  • ⚠️ Confusing BMR with TDEE (BMR is reposo total, TDEE includes actividad)
  • ⚠️ Use formula Harris-Benedict original (obsoleta from 1990)
  • ⚠️ Not ajustar calories to the cambiar weight (recalcular each 5kg perdidos)

Worked example

Calculate BMR for 75kg, 175cm, 30 years, male.

The BMR muestra calories in reposo absoluto; the TDEE includes multiplicador is of actividad to expense total daily.

Input guide

FieldTypical range
peso_kgPeso common: 45-120
altura_cmAltura common: 140-200
edadEdad typical: 18-80