A calculator is a very useful tool that helps us with basic math operations like addition, subtraction, multiplication, and division. Whether you are a student, a shop owner, or someone managing monthly expenses, you use a calculator almost every day.
In this article, we will learn how to build a simple calculator website using HTML, CSS, and JavaScript. This project is great for beginners who want to understand how websites work and how coding creates interactive tools.
We will divide the project into three parts:
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HTML will create the structure (buttons, display screen, etc.)
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CSS will make the design look clean and nice (colors, spacing, layout)
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JavaScript will handle the logic (what happens when you click a button)
By the end of this article, you will have a working calculator that performs all basic arithmetic operations. You’ll also get the full source code for free on GitHub, so you can use it, improve it, or share it with others.
This is a fun and easy project to start your web development journey and learn how to build real websites step by step.
Features of This Calculator:
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Simple and modern user interface
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Responsive design
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Perform basic arithmetic operations ( + – × ÷ )
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Live result display
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Built using pure HTML, CSS & JavaScript
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Open-source (GitHub link available below)
🔶 Technologies Used:
| Technology | Purpose |
|---|---|
| HTML | Structure of the calculator layout |
| CSS | Styling the buttons, layout, and background |
| JavaScript | Logic and functionality for calculations |
Full Code
🔶 Live Demo and Source Code
👉 GitHub Code: Visit GitHub Repository
The entire project is open-source and free to use. You can fork it, modify it, and use it in your own projects.
🔶 Conclusion:
Creating a calculator using HTML, CSS, and JavaScript is a great beginner project to understand DOM manipulation and basic logic implementation. You can enhance this by adding dark mode, scientific features, or animations.
