Understanding BMR & TDEE
Basal Metabolic Rate (BMR) is the number of calories your body needs at rest. Total Daily Energy Expenditure (TDEE) accounts for your activity level and represents the total calories you burn in a day. This free online BMR Calculator uses the Mifflin-St Jeor equation, the most accurate formula for calculating BMR and TDEE.
Why Use a BMR Calculator?
A BMR Calculator helps you understand your body's energy needs. Whether you're planning to lose weight, gain muscle, or maintain your current weight, knowing your BMR and TDEE is essential. This tool provides accurate estimates to guide your nutrition and fitness goals.
How to Use the BMR Calculator
- Select your gender from the dropdown
- Enter your age (18-100 years)
- Input your weight and select kg or lbs
- Input your height and select cm or inches
- Choose your activity level from the options
- Click "Calculate BMR & TDEE"
What is Total Daily Energy Expenditure (TDEE)?
TDEE is the total number of calories you burn in a day, including physical activity. It is calculated by multiplying your BMR by an activity factor. This value is crucial for determining your daily calorie needs for weight management.
Frequently Asked Questions
What's the difference between BMR and TDEE?
BMR represents your baseline calorie needs at complete rest. TDEE includes all daily activities and exercise.
How accurate is this calculator?
The Mifflin-St Jeor equation is considered the most accurate BMR formula for healthy adults, with ±5% accuracy.
Should I use BMR or TDEE for weight loss?
Use TDEE as your maintenance calories. Create a deficit from TDEE (typically 500 calories/day for 1lb/week loss).
Is this BMR Calculator free to use?
Yes, this is a free online BMR Calculator designed to help you estimate your Basal Metabolic Rate and Total Daily Energy Expenditure.
Can I use TDEE to gain muscle?
Yes, to gain muscle, consume calories above your TDEE while following a strength training program.
Why is activity level important for TDEE?
Activity level directly impacts your Total Daily Energy Expenditure (TDEE) because it accounts for the calories burned through physical activity.