Basal Metabolic Rate (BMR) Calculator
Calculate your Basal Metabolic Rate (BMR) and daily calorie needs. Understand how many calories your body burns at rest and with different activity levels.
Step 1: Personal Details
Understanding BMR
Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production.
Step 2: Activity Level & Goals
Activity Multipliers
Sedentary: BMR × 1.2 | Lightly active: BMR × 1.375 | Moderately active: BMR × 1.55 | Very active: BMR × 1.725 | Extremely active: BMR × 1.9
BMR & Calorie Needs Results
Your Basal Metabolic Rate (BMR)
Daily Calorie Needs by Activity Level
| Activity Level | Multiplier | Daily Calories | Description |
|---|
Macronutrient Breakdown
BMR Formulas
Mifflin-St Jeor: Men: 10×weight + 6.25×height – 5×age + 5 | Women: 10×weight + 6.25×height – 5×age – 161
Katch-McArdle: 370 + (21.6 × lean body mass in kg)
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