Basal Metabolic Weight (BMW) Calculator

BMR Calculator (Basal Metabolic Rate)

This **basal metabolic rate calculator** helps you understand how many calories your body burns at rest. By using the **Harris Benedict formula BMR**, this tool also acts as a **calorie needs calculator** so you can adjust your diet and exercise plan.

Gender Male Female Age (years) Height (cm) Weight (kg) Activity Level Sedentary (little to no exercise) Lightly Active (1-3 days/week) Moderately Active (3-5 days/week) Very Active (6-7 days/week) Extra Active (physical job + exercise)

How This Calculator Works

The **BMR calculator online** uses the **Harris-Benedict formula**:

• Men: BMR = 88.36 + (13.4 × weight) + (4.8 × height) − (5.7 × age)
• Women: BMR = 447.6 + (9.2 × weight) + (3.1 × height) − (4.3 × age)

Then, your BMR is multiplied by your activity factor to **calculate daily calories** required to maintain your weight.

This **calorie needs calculator** helps in weight loss, muscle gain, or healthy maintenance.