BMR (Basal Metabolic Rate) Calculator

Authored by: Zovixia Editorial StaffReviewed by: Technical & Financial Review TeamLast Updated: 2026-09-11

Calculate Basal Metabolic Rate (BMR) calories burned at rest using the Mifflin-St Jeor equation.

Basal Metabolic Rate (BMR) estimates the minimum calorie burn required to maintain essential life functions at rest.

Calculate your baseline resting metabolic burn to plan weight loss, maintenance, or muscle gain diets.

Daily Maintenance Calories (TDEE)
2,302 kcal/day
Basal Metabolic Rate (BMR)
1,674 kcal/day
Weight Loss (-500 kcal)
1,802 kcal/day
Extreme Loss (-1000 kcal)
1,302 kcal/day
Weight Gain (+500 kcal)
2,802 kcal/day

Educational Overview & Calculation Methodology

The BMR (Basal Metabolic Rate) Calculator provides instant quantitative analysis designed to solve practical mathematical, financial, chronological, or conversion problems. Operating entirely client-side inside your web browser runtime, all calculations update dynamically without transmitting sensitive user data.

Understanding the underlying mathematical formulas and conversion ratios helps ensure accurate interpretation of calculated values when planning personal budgets, analyzing test scores, or configuring technical specifications.

Mifflin-St Jeor Equation

Male: 10×W + 6.25×H - 5×A + 5 | Female: 10×W + 6.25×H - 5×A - 161

How to Use This Tool

  1. Select gender.
  2. Enter age, weight, and height.
  3. View resting BMR calories.

Real-World Examples

25 yr male, 70 kg, 175 cm
BMR = 1,669 kcal/day

Frequently Asked Questions

What is BMR?

Basal Metabolic Rate is the number of calories your body burns while at complete rest.

Is the BMR (Basal Metabolic Rate) Calculator free to use?

Yes, the BMR (Basal Metabolic Rate) Calculator on Zovixia is 100% free with unlimited calculations and no registration required.

Are my calculation inputs saved on any server?

No. All calculations are executed locally inside your browser memory. Your private inputs are never transmitted, logged, or stored.

Medical Disclaimer

This body mass index calculation is provided for general health awareness and educational tracking purposes only. It does not evaluate body composition, muscle mass, or metabolic health, and should not replace clinical medical evaluation by a licensed healthcare professional.