As a student developer passionate about health tech and web development, I wanted to build something useful for everyday users.
So I created TheFitCalculator — a free online tool to calculate BMI, BMR, daily calorie needs, and ideal weight instantly.
👉 Try it here: https://thefitcalculator.com
💡 Why I Built This
My goal was simple:
- Fast calculations
- Clean UI
- No data storage
- Fully browser-based processing
🛠️ Tech Stack
I built this project using:
- React.js for component-based UI
- Tailwind CSS for responsive design
- JavaScript for calculation logic
- Vercel for deployment
✨ Features
✅ BMI Calculator with health category
✅ BMR Calculator using standard formulas
✅ Daily calorie needs estimator
✅ Ideal weight calculator
✅ Dark mode support
✅ Mobile responsive design
You can explore the calculators here:
- BMI Calculator → https://thefitcalculator.com/bmi-calculator
- BMR Calculator → https://thefitcalculator.com/bmr-calculator
- Calorie Calculator → https://thefitcalculator.com/calorie-calculator
- Ideal Weight Calculator → https://thefitcalculator.com/ideal-weight-calculator
🚀 Future Improvements
I plan to add:
- Body fat calculator
- Water intake calculator
- Fitness blog section
- PWA support
🤝 Feedback Welcome
I’d love feedback from the dev community to improve this project.
👉 Check it out: https://thefitcalculator.com
👉 GitHub repo: https://github.com/swetasingh8844/HealthCalc
Thanks for reading!
Top comments (2)
Amazing build, I’ll use it.
Thanks a lot! I hope you find it useful.