Pixels to VH Converter

Viewport Height (VH) is a responsive CSS unit that represents a percentage of the screen's visible height. Unlike pixels (PX), which are fixed units, VH adjusts dynamically based on the screen size, making it ideal for fluid and responsive web design.

Use this PX to VH Converter to quickly and accurately convert pixel values into viewport height for a seamless, responsive design.

Pixel to VH Converter

Viewport Height

Steps to Use the Converter

  • Enter the Viewport Height value.
  • Input the Pixels value you want to convert.
  • Press Enter or click the Convert button.

What is a Viewport?

A viewport is the visible area of a webpage within a browser window. On desktops, it is the size of the open browser window, while on mobile devices, the entire screen acts as the viewport.

  • Types of Viewports: Visual vs. Layout

    • Visual Viewport
      1. The part of the webpage currently visible to the user.
      2. Zooming in makes elements (text, images, etc.) larger, but the page width remains unchanged.
      3. Requires horizontal scrolling to view off-screen content.
      4. No effect on the overall layout of the webpage.
    • Layout Viewport
      1. Defines how a webpage is rendered and structured.
      2. Changes when responsive design media queries are triggered (e.g., switching from desktop to mobile view).
      3. Affects how content adapts to different screen sizes.
  • Viewport Behavior on Different Devices

    • On desktops and laptops, zooming in or out affects the layout viewport, causing design adjustments.
    • On mobile and tablets, pinch zooming only affects the visual viewport, magnifying content without altering the layout.
  • Simple Viewport Analogy

    Imagine a large painting inside a frame:

    • The frame represents the browser window.
    • The painting represents the layout viewport.
    • What you can currently see as you move along represents the visual viewport.

    By default, when developers talk about the viewport, they are usually referring to the layout viewport.

What is Viewport Height (VH)?

Viewport height (VH) refers to the total height of the visible browser window. It excludes elements such as borders, margins, scrollbars, and browser chrome (including toolbars, tabs, and the address bar).

  • Understanding VH in CSS

    In CSS, VH is a unit that represents a percentage of the viewport's height. This makes it a useful tool for creating responsive web designs.

  • VH Measurement

    • 1vh = 1% of the viewport height
    • 50vh = 50% of the viewport height
    • 100vh = Full viewport height

    Using VH units ensures that elements dynamically adjust based on screen size, improving the user experience on different devices.

How to Convert VH to PX?

Viewport height (VH) is a CSS unit that adapts based on the height of the browser window. To convert VH to pixels (PX), you first need to determine the viewport height in pixels.

  • Step 1: Identify Your Viewport Height

    For example, if your current screen size is 1920px × 959px, then the viewport height is 959px.

  • Step 2: Use the Conversion Formula

    To convert a specific pixel value into VH, apply the formula:

    VH = (Pixels / Viewport Height) × 100
  • Example Calculation

    Let's say you want to convert 250px to VH with a viewport height of 959px:

    So, 250px is approximately 26vh in a 959px-high viewport. This method helps ensure responsive web design across different screen sizes.

How to Get the Viewport Height?

To retrieve the Viewport Height (VH) in pixels, you can use JavaScript. The window object provides the innerHeight property, which returns the height of the viewport in pixels.

  • Using JavaScript to Get Viewport Height

    JavaScript Code:
    let viewportHeight = window.innerHeight;
    console.log(viewportHeight);

    This code returns the viewport height in pixels, allowing you to dynamically adjust elements for responsive web design.

Viewport Heights on Popular Devices

Below is a reference table comparing common viewport heights on popular devices against specific pixel values.

PX iPhone 12 Pro (844px) iPad Pro 12.9" (1366px) Samsung Galaxy S9+ (740px)
50px5.9vh3.6vh6.7vh
60px7.1vh4.3vh8.1vh
90px10.6vh6.5vh12.1vh
200px23.6vh14.6vh27vh
250px29.6vh18.3vh33.7vh
280px33.1vh20.4vh37.8vh
300px35.5vh21.9vh40.5vh
600px71vh43.9vh81vh

By understanding viewport height and how it scales across devices, you can ensure a fully responsive web design that adapts seamlessly to different screen sizes.

VH to Pixels Converter

Quickly convert CSS viewport height (vh) units to pixels (px) with this efficient tool. VH is a relative unit based on your screen's visible area, while PX is a fixed unit. Simplify your web design measurements with this handy VH to PX converter.

VH to Pixel Converter

Viewport Height

Steps to Use the Converter

  • Enter the Viewport Height value.
  • Input the View height value you want to convert.
  • Press Enter or click the Convert button.

What is Viewport Height (vh)?

Viewport height (vh) is a CSS unit that represents a percentage of the visible screen space. It refers to the viewable area of a device’s screen, whether on a desktop, laptop, tablet, or smartphone.

  • Understanding Viewport Height

    • On desktops and laptops, the viewport is the visible portion of the browser window.
    • On mobile devices, it refers to the screen area available for web content.
    • Every device has a specific viewport size, which manufacturers provide in their specifications.

How to Convert Viewport Height (vh) to Pixels (px)

Viewport height (vh) is a CSS unit that defines a percentage of the visible screen space. Unlike pixels (px), which are fixed units, vh adapts dynamically based on the device's screen size.

  • VH to PX Conversion Formula:

    Use this simple formula to manually convert PX to VH:

  • Example Calculation

    Let’s say you’re working with a device viewport of 430px × 932px (iPhone 14 Pro Max). The viewport height is 932px.

    Now, converting 50vh to pixels:

    So, 50vh is equal to 466px on this specific device.

How to Get the Viewport Height (vh)?

You can easily retrieve the viewport height of a webpage using JavaScript. The window object provides an attribute called innerHeight, which returns the viewport height in pixels.

console.log(window.innerHeight); // Outputs the viewport height in pixels

This allows you to dynamically calculate and adjust elements based on the user's screen size.

Usage of Viewport Height (vh)

There are several practical use cases for vh in web design:

  • Full-Screen Layouts (Sticky Header & Footer)

    To make the header stay at the top and the footer stick at the bottom, even on a blank page, use:

    body {
        height: calc(100vh - footerpx - headerpx);
    } 

    This ensures a responsive, full-screen layout.

  • Checking if Content Fits within the Viewport

    If you need to determine whether an image or iframe will fit within 60vh, use JavaScript:

    const sixtyVhInPx = (window.innerHeight / 100) * 60;
    console.log(sixtyVhInPx); // Check if content exceeds this height

Viewport Heights on Popular Devices

Below is a reference table comparing common Pixels on popular devices against specific pixel values.

vh iPhone 12 Pro (844px) iPad Pro 12.9" (1366px) Samsung Galaxy S9+ (740px)
10vh84.4px136.6px74px
20vh168.8px273.2px148px
30vh253.2px409.8px222px
40vh337.6px546.4px296px
50vh422px683px370px
60vh506.4px819.6px444px
70vh590.8px956.2px518px
80vh675.2px1092.8px592px
90vh759.6px1229.4px666px