BMR & TDEE Calculator
Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE).
Your Body's "Engine Idle" Speed
Your Basal Metabolic Rate (BMR) is the number of calories your body burns just to stay alive—to keep your heart beating, lungs breathing, and brain functioning while you're at complete rest. Knowing this number is the foundation of any effective diet or fitness plan. This calculator also estimates your TDEE (Total Daily Energy Expenditure), which is your BMR plus the calories you burn from your daily activities. Your TDEE is the true number of calories you need to maintain your current weight.
How to Calculate Your Calorie Needs
The calculation is based on your personal stats:
- Your Details: Enter your age, gender, height, and weight.
- Your Activity Level: Be honest about your weekly activity, from sedentary (desk job) to extra active (physical job + daily workouts).
The calculator will provide your estimated BMR and TDEE in calories per day, giving you a baseline for your nutrition goals.
Frequently Asked Questions (FAQ)
Q: How do I use my TDEE for weight loss?
A: To lose weight, you must be in a caloric deficit, meaning you consume fewer calories than your TDEE. For sustainable weight loss (about 1-2 pounds per week), a deficit of 300-500 calories from your TDEE is a common and effective starting point.
Q: Is this calculator 100% accurate?
A: No calculator can be 100% accurate. This tool uses the respected Mifflin-St Jeor equation, which is considered one of the most accurate methods for estimating BMR. However, individual factors like body composition, genetics, and hormones can influence your exact metabolic rate. Use this as a strong starting point and adjust based on your real-world results.