What is viewport width (vw) and how does it work?

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

When should I use vw instead of pixels?

Use vw when you want elements to scale proportionally with the browser window width, such as responsive typography or fluid layouts. Use pixels for fixed-size elements like borders or small icons.

How do I handle very narrow screens with vw?

For very narrow screens, consider using min-width or max-width properties alongside vw units. You can also use calc() functions like calc(20vw + 200px) for minimum sizes.

Can I use vw units for responsive typography?

Yes! VW units are perfect for responsive typography. For example, you can use font-size: 5vw for headlines that scale with viewport width, creating fluid typography systems.

How accurate are PX to VW conversions?

Our converter provides precise mathematical conversions based on your current viewport width. For example, if your viewport is 1200px wide, 300px converts to exactly 25vw.

What are some common vw values?

Common viewport width values include: 100vw (full viewport width), 90vw (content containers), 50vw (half-width sections), 33vw (one-third columns), 25vw (quarter-width elements).

PX to VW Converter

Convert pixel values to viewport width (vw) units for responsive typography and fluid layouts with instant viewport calculation. Perfect for mobile-first design and responsive web development.

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Quick Presets

Common pixel widths for quick conversion

Input

Enter a pixel value to convert to VW (viewport width units)

Pixels (px)

Your current viewport width: 1200px (1vw = 12px)

How it works: Divides the pixel value by your current viewport width and multiplies by 100 to get the VW value. VW units are relative to the browser viewport width, making them ideal for fluid layouts and responsive typography.

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