How I Built a Modern Calculators Web App Using React, Vite, and CSS Building a calculator is a rite of passage for web developers. However, I wanted to take this classic project a step further.

Instead of making a single, basic calculator, I built a comprehensive, multi-functional calculator hub.

Here is a look behind the scenes of how I built this platform using React, Vite, and clean semantic HTML/CSS, along with the key engineering lessons I learned along the way.The Vision: Beyond the Standard GridMost calculator tutorials stop at basic addition and subtraction.

My goal was to create a centralized hub featuring various tools, such as standard arithmetic, financial calculators, and unit converters. I needed a tech stack that could handle multiple states, render instantly, and scale easily as I added more tools.

*Why This Tech Stack?