Viewport Units Calculator

Understanding Viewport Units: Why `vh` Matters

**Description:** A quick guide to viewport units and how our calculator helps web developers.

In web development, creating a truly responsive design can be a challenge. You want your website to look perfect on every screen, from a small phone to a large desktop monitor. This is where **viewport units** come in.

Viewport units are a set of CSS measurements that are relative to the size of the browser window's viewport. The two most common are:

• **`vw` (Viewport Width):** Represents 1% of the viewport's width. So, `100vw` is equal to the full width of the browser window.
• **`vh` (Viewport Height):** Represents 1% of the viewport's height. `100vh` is the full height of the browser window.

So, if you want a section of your webpage to fill the entire screen vertically, you would set its height to `100vh`. This is a common practice for "hero" sections or landing pages.

Why Use This Calculator?

Our **Viewport Units Calculator** helps you see the direct relationship between these relative units and absolute pixels. While a developer may use `100vh` in their code, they might wonder, "what does that actually translate to on my current screen?" This tool provides that exact number in real-time, especially as you resize your browser window.

This can be a valuable tool for debugging layouts, understanding why elements might be stretching unexpectedly, or simply confirming that your design is behaving as intended.