Basal Metabolic Rate (BMR) Calculator with a modern, responsive design. This calculator estimates the number of calories your body needs at rest, based on age, gender, weight, height, and activity level.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to estimate daily calorie needs at rest.
Your Daily Calorie Needs
0
Calories per day to maintain your current weight.
BMR (Basal Metabolic Rate)
0 kcal
Sedentary
0 kcal
Lightly Active
0 kcal
Moderately Active
0 kcal
Very Active
0 kcal
Extra Active
0 kcal
Key Features of This BMR Calculator
✅ Modern, Responsive Design – Works on mobile & desktop
✅ Gender & Age Adjustment – Different formulas for men & women
✅ Activity Level Multipliers – Shows calorie needs for different lifestyles
✅ Smooth Animations – Fade-in effect for results
✅ Input Validation – Ensures realistic values
✅ Clean UI with CSS Variables – Easy to customize colors
How It Works
- User enters: Age, gender, weight, height, and activity level.
- BMR is calculated using the Mifflin-St Jeor Equation (most accurate formula).
- TDEE (Total Daily Energy Expenditure) is calculated for different activity levels.
- Results are displayed with a smooth animation.
Want to Add More Features?
- Save user data (local storage)
- Macronutrient breakdown (carbs, protein, fat)
- Weight goal calculator (gain/lose weight)