Px To Em Converter in HTML
? PX to EM Converter in HTML (with JavaScript)
You can create a simple PX to EM converter using HTML and JavaScript. This helps convert pixel values to em units based on a root font size.
How em Works
1emequals the font size of the parent element (usually root is 16px by default).To convert px to em:
em = px / root font size
Example: Simple PX to EM Converter
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8" /> <title>PX to EM Converter</title></head><body> <h2>PX to EM Converter</h2> <label for="pxInput">Pixels (px): </label> <input type="number" id="pxInput" placeholder="Enter px value" /> <label for="rootInput">Root font size (px): </label> <input type="number" id="rootInput" value="16" /> <button onclick="convertPxToEm()">Convert</button> <p id="result"></p> <script> function convertPxToEm() { const px = parseFloat(document.getElementById('pxInput').value); const root = parseFloat(document.getElementById('rootInput').value) || 16; if (isNaN(px)) { document.getElementById('result').textContent = 'Please enter a valid pixel value.'; return; } const em = px / root; document.getElementById('result').textContent = `${px}px = ${em.toFixed(3)}em (based on root font size ${root}px)`; } </script></body></html>How It Works:
Enter a pixel value (e.g., 24) and root font size (default 16px).
Click Convert.
See the equivalent value in
em.
Want me to help you create a EM to PX converter too or add styling?
