Calculate your daily calorie needs based on age, gender, weight, height, and activity level. Get personalized goals for weight loss, maintenance, or gain.
All calculations run locally. Your data stays private — never leaves your device.
How to Use
1
Select Gender
Choose male or female - formulas are gender-specific
2
Enter Your Details
Input age, weight, height, and activity level
3
Click Calculate
Press calculate to see your results
4
View Your Goals
See maintenance calories and weight change goals
Features
Instant Results
Get calculations in real-time
100% Private
All processing in your browser
6 Goal Types
Multiple weight goals included
Activity Levels
5 activity levels for accuracy
Unlimited Use
No limits, no registration
Activity Guide
×1.2
Sedentary
×1.375
Lightly Active
×1.55
Moderately Active
×1.725
Very Active
×1.9
Super Active
500 kcal
0.5 kg/week
Why Use Our Calorie Calculator?
Instant Results
Get your BMR and TDEE instantly
100% Private
All calculations happen locally
6 Goal Types
Loss, maintenance, and gain goals
Any Device
Works perfectly on all devices
Frequently Asked Questions
What is BMR?
Basal Metabolic Rate (BMR) is the number of calories your body burns at complete rest to maintain vital functions like breathing and heartbeat.
What is TDEE?
Total Daily Energy Expenditure (TDEE) is your BMR multiplied by your activity factor. It represents your total daily calorie needs.
How accurate is the Mifflin-St Jeor equation?
The Mifflin-St Jeor equation is considered one of the most accurate BMR formulas, with about 90% accuracy for most populations.
How many calories to lose weight?
A deficit of 500 calories per day typically leads to about 0.5 kg of weight loss per week. Never go below 1200 calories for women or 1500 for men without medical supervision.
Is my data private?
Yes! All calculations happen in your browser. We never store or transmit any personal information.
What activity level should I choose?
Be honest about your activity level. Sedentary = desk job, Lightly active = light exercise 1-3 days/week, Moderately active = moderate exercise 3-5 days/week, Very active = intense exercise 6-7 days/week, Super active = twice daily training/physical job.
Can I use this for weight gain?
Yes! Add 500 calories to your maintenance for 0.5 kg gain per week. Combine with strength training for muscle gain.
Is this tool free?
Yes, completely free with unlimited calculations. No registration or login required.