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How to Use BMR Calculator

  1. Enter your details: Fill in your age, gender, weight (kg), and height (cm).
  2. Calculate BMR: Click Calculate to get your Basal Metabolic Rate using the Mifflin-St Jeor formula.
  3. Plan your diet: Use your BMR to determine daily calorie needs. Add activity level to find Total Daily Energy Expenditure (TDEE).

About BMR Calculator

BMR Calculator (Basal Metabolic Rate) determines how many calories your body needs daily just to stay alive while doing absolutely nothing.

  • Scientific Formula: Uses your gender, age, weight, and height to accurately calculate your BMR via the Mifflin-St Jeor equation.
  • Diet Planning: Knowing your BMR helps you set a calorie-deficit diet plan if you want to lose weight.
  • Baseline Metric: This is the very first number anyone starting a fitness journey needs to know.

Dieticians, gym trainers, and fitness freaks use this in their daily calculations.

Frequently Asked Questions

What is BMR?

BMR (Basal Metabolic Rate) is the number of calories your body burns at complete rest to maintain basic functions like breathing and circulation.

How is BMR calculated?

Using the Mifflin-St Jeor formula: Men: 10×weight(kg) + 6.25×height(cm) − 5×age − 5. Women: 10×weight(kg) + 6.25×height(cm) − 5×age − 161.

How do I use BMR for weight loss?

To lose weight, eat fewer calories than your Total Daily Energy Expenditure (TDEE = BMR × activity factor). A 500 calorie deficit loses ~0.5 kg/week.

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