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Calorie Calculator
Calculate your BMR and daily calorie needs (TDEE) based on age, weight, height, and activity.
100% BROWSER-BASED
BMR
1649
cal/day
TDEE
2556
cal/day
Calorie Goals
2056
Lose 1 lb/wk
2556
Maintain
3056
Gain 1 lb/wk
/ HOW TO USE
How to Use Calorie Calculator
This tool runs entirely in your browser. Upload your file, make your changes, and download the result. Your files never leave your device — everything is processed locally for maximum privacy.
/ FEATURES
Key Features
100% Client-Side Processing
No File Size Limits
Completely Free
Privacy Focused
Instant Results
Works Offline
/ USE CASES
Common Use Cases
- —Plan weight loss or gain goals
- —Understand daily caloric needs
- —Design nutrition plans
- —Track fitness progress
/ FAQ
Frequently Asked Questions
What formula is used?
We use the Mifflin-St Jeor equation, which is considered the most accurate for estimating BMR.
/ YOUR PRIVACY
Your Privacy is Guaranteed
Unlike other tools that upload your files to servers, ToolBox processes everything locally in your browser.
No server uploads
Instant processing
Works offline