Estimate Your Daily Calorie Burn (TDEE)
Use this calculator to estimate how many calories your body burns each day based on your age, body size, sex, and activity level.
What is a daily calorie burn calculator?
A daily calorie burn calculator estimates the number of calories your body uses in a full day. This total is often called TDEE (Total Daily Energy Expenditure). It includes calories burned through basic body functions like breathing and circulation, plus movement, exercise, and routine activities.
Knowing your estimated calorie burn can help you make smarter nutrition and fitness decisions. Whether your goal is weight loss, muscle gain, or weight maintenance, your TDEE gives you a practical starting point.
How this calculator works
Step 1: Basal Metabolic Rate (BMR)
Your BMR is the calories your body burns at rest. This page uses the Mifflin-St Jeor formula:
- Men: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5
- Women: BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161
Step 2: Activity multiplier
Once BMR is estimated, the calculator multiplies it by an activity factor to estimate your TDEE. That result is your approximate daily calorie burn under your current lifestyle pattern.
How to use your result
- Maintenance: Eat around your TDEE to maintain body weight.
- Fat loss: Consume fewer calories than TDEE (often 300-500 fewer per day).
- Muscle gain: Eat slightly above TDEE (commonly 150-300 extra calories/day).
Your true calorie needs can vary due to sleep quality, stress, hormones, food quality, and individual metabolism. Use this estimate, then adjust based on your weekly progress.
Tips to improve calorie burn over time
1) Build lean muscle
Strength training supports higher calorie expenditure because lean body mass is metabolically active tissue.
2) Increase non-exercise movement
Walking, taking stairs, doing housework, and standing more can significantly increase total daily burn (often called NEAT: Non-Exercise Activity Thermogenesis).
3) Stay consistent with training
Consistency beats intensity spikes. A regular weekly routine helps maintain a stable and predictable calorie burn.
4) Track and adjust
Use your calorie burn estimate for 2-3 weeks, monitor weight and measurements, then refine your intake by small increments.
Common mistakes when estimating calorie burn
- Choosing an activity level that is too high.
- Ignoring portion sizes and hidden calories.
- Changing calories too aggressively instead of gradually.
- Expecting day-to-day scale changes to reflect true fat change.
Final takeaway
A daily calorie burn calculator is not a perfect prediction, but it is an excellent decision-making tool. Start with your estimated TDEE, apply a clear goal strategy, and adjust based on real-world outcomes. With consistency, this simple approach can make nutrition planning far more effective and sustainable.