What is viewport height (vh) and how does it work?

Viewport height (vh) is a CSS relative length unit that represents 1% of the viewport's (browser window's) height. When you use 50vh, you're telling the browser to make that element 50% of the current viewport height.

When should I use vh instead of pixels?

Use vh when you want elements to scale proportionally with the browser window height, such as full-height hero sections or responsive modals. Use pixels for fixed-size elements like buttons.

How do I handle mobile browser issues with vh?

Mobile browsers often hide/show the address bar, changing viewport height dynamically. For critical layouts, consider using CSS environment variables like height: 100dvh (dynamic viewport height).

Can I use vh units for responsive typography?

Yes! VH units work great for responsive typography. For example, you can use font-size: 5vh for headlines that scale with viewport height, or line-height: 3vh for responsive spacing.

How accurate are PX to VH conversions?

Our converter provides precise mathematical conversions based on your current viewport height. For example, if your viewport is 900px tall, 300px converts to exactly 33.33vh.

What are some common vh values?

Common viewport height values include: 100vh (full viewport height), 90vh (hero sections), 80vh (main content areas), 70vh (sidebars), 50vh (half-height sections).

PX to VH Converter

Convert pixel values to viewport height (vh) units with precision and real-time viewport percentage calculation. Perfect for responsive design and mobile optimization with instant preview and CSS output generation.

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Quick Presets

Common pixel heights for quick conversion

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Enter a pixel value to convert to VH (viewport height units)

Pixels (px)

Your current viewport height: 800px (1vh = 8px)

How it works: Divides the pixel value by your current viewport height and multiplies by 100 to get the VH value. VH units are relative to the browser viewport height, making them ideal for full-screen sections and responsive layouts.

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