What is a pixel (PX)?
A pixel is the smallest unit of a digital image or display. It represents a single point of color
and is the standard unit for measuring screen resolutions and digital graphics.
What's the difference between EM and REM?
EM units are relative to the font-size of their parent element, while REM units are always
relative to the root (html) element's font-size. REM provides more consistent scaling across the
entire website.
When should I use viewport units?
Viewport units (VH/VW) are ideal for creating responsive layouts that scale with the browser
window size. They're particularly useful for full-screen sections, hero elements, and dynamic
typography.
How accurate are the conversions?
Our converter provides precise calculations based on standard web measurements. However, note
that actual display size may vary slightly due to device pixel density and browser settings.
Why do I need unit conversion?
Unit conversion is essential for responsive web design, ensuring consistent layouts across
different devices and screen sizes. It helps maintain proper scaling and improves accessibility.