BMR Calculator Online Free
Calculate your Basal Metabolic Rate and estimate daily calorie needs. Enter your age, gender, height, weight and activity level to see BMR, TDEE and calorie goals.
Your Details
Your BMR Results
Estimated Daily Calorie Goals
How to Use the BMR Calculator
Estimate your daily energy needs in three simple steps.
1. Enter your details
Add age, gender, height and weight using metric or imperial units.
2. Choose activity level
Select your activity level to estimate total daily calorie needs.
3. Review results
See your BMR, TDEE and calorie goals for maintenance, loss or gain.
Estimate your metabolism and daily calories.
This BMR Calculator helps you understand how many calories your body may burn at rest, then estimates total daily energy expenditure based on your activity level.
You can calculate BMR, estimate TDEE calories, compare daily calorie goals and use metric or imperial units with Mifflin-St Jeor or Harris-Benedict formulas.
What is BMR?
BMR stands for Basal Metabolic Rate. It estimates how many calories your body uses at rest for basic functions like breathing, circulation, cell activity and temperature regulation.
BMR is an estimate, and real calorie needs can vary based on health, training, body composition and lifestyle.
When should you use it?
- Estimating daily calorie needs
- Planning weight loss, maintenance or gain
- Comparing activity levels and TDEE
- Learning how metabolism estimates work
- Setting general nutrition targets
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BMR Calculator FAQ
Common questions about basal metabolic rate and daily calorie needs.
What is BMR?
BMR stands for Basal Metabolic Rate. It estimates calories your body uses at rest for basic functions like breathing, circulation and cell activity.
What is TDEE?
TDEE stands for Total Daily Energy Expenditure. It estimates your total daily calories after activity level is included.
Which BMR formula should I use?
Mifflin-St Jeor is widely used for modern estimates. Harris-Benedict is another common equation for comparison.
Is this calculator medical advice?
No. This calculator is for educational estimates only and does not replace professional health or nutrition advice.
What is the difference between BMR and TDEE?
BMR estimates calories burned at rest. TDEE estimates total daily calories after activity level is included.
Can I use pounds and inches?
Yes. This BMR calculator supports both metric and imperial units.
What are calorie goals?
Calorie goals are estimates for fat loss, maintenance and weight gain based on your estimated TDEE.
Does it work on mobile?
Yes. This BMR calculator works on desktop, tablet and mobile browsers.