In this project, we’re going to build a practical weight converter using HTML, CSS, and JavaScript. You’ll see how to convert a value and keep the result easy to understand. Along the way, you’ll practice setTimeout, input events, DOM selection, so you can understand how the interface and JavaScript logic work together.
Create these three files, copy the code into each one, then open index.html with Live Server.
weight-converter/ ├── index.html ├── style.css └── index.js
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Weight Converter</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1 class="heading">Weight Converter</h1>
<div class="input-container">
<label for="pounds">Pounds:</label>
<input type="number" id="input" class="input" step=".1" placeholder="Enter number">
</div>
<p>Your weight in kg is: <span id="result"></span></p>
<p class="error" id="error"></p>
</div>
<script src="index.js"></script>
</body>
</html>
Continue your learning journey with these handpicked projects that share similar concepts and technologies
In this project, we’re going to build a practical tip calculator using HTML, CSS, and JavaScript. The user can enter a bill amount and tip percentage, then calculate the final total with one click. It’s a small project, but it gives you a really good understanding of how JavaScript takes user input, performs a calculation, and displays the result on the page.
View project
In this project, we’re going to build a practical simple stopwatch using HTML, CSS, and JavaScript. You’ll see how to connect user interactions to visible changes on the page. Along the way, you’ll practice setInterval, click events, DOM selection, so you can understand how the interface and JavaScript logic work together.
View project
In this project, we’re going to build a practical dice roll simulator using HTML, CSS, and JavaScript. You’ll see how to connect user interactions to visible changes on the page. Along the way, you’ll practice setTimeout, click events, DOM selection, so you can understand how the interface and JavaScript logic work together.
View project