BMR Calculator — Calculate Your Basal Metabolic Rate

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on your age, gender, height, weight, and activity level.

Step 1: Personal Details

Male
Female
30 years
Metric
Imperial
cm
kg

Understanding BMR

Basal Metabolic Rate (BMR) is the number of calories your body needs to maintain basic physiological functions at rest, including breathing, circulation, and cell production.

Step 2: Activity Level

Office job, no exercise

About Activity Multipliers

Your BMR is multiplied by an activity factor to estimate total daily energy expenditure (TDEE). This accounts for calories burned through physical activity and exercise.

BMR Calculation Results

Summary
Activity Comparison
Calorie Breakdown

Your Basal Metabolic Rate (BMR)

1,655 kcal
Daily Calories Needed: 2,235 kcal
BMR (Basal Metabolic Rate)
1,655 kcal
Daily Calorie Needs
2,235 kcal
Weekly Calorie Needs
15,645 kcal
Weight Goal Calories
2,235 kcal

Daily Calorie Needs by Activity Level

Activity Level Description Multiplier Daily Calories Weekly Calories

Calorie Breakdown by Macronutrient

BMR Calculation Formula

Mifflin-St Jeor Equation (Most Accurate)

For men: BMR = 10 × weight(kg) + 6.25 × height(cm) – 5 × age(y) + 5
For women: BMR = 10 × weight(kg) + 6.25 × height(cm) – 5 × age(y) – 161

TDEE (Total Daily Energy Expenditure) = BMR × Activity Multiplier

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