Conversion Form

VW
PC

About the Unit

VW (Viewport Width): VW is a relative unit based on the width of the viewport (the visible area of the page in the browser). 1vw corresponds to 1% of the viewport width. This unit is extremely useful when you want to create designs that automatically adjust to the screen width, especially in responsive layouts. Using vw units allows you to set element widths that adapt fluidly to the screen size without the need for complicated media queries. For example, if you set an element's width to 50vw, it will occupy half of the screen width, regardless of the screen size or device resolution. This flexibility makes VW ideal for layouts that need to be adaptable, such as websites that work well on both mobile devices and desktops.

Pro Tip: vw → pc

Convert vw to pc for print layouts.

Quick Reference: Unit Conversion by Tens

VWPC
10vw12pc
20vw24pc
30vw36pc
40vw48pc
50vw60pc
60vw72pc
70vw84pc
80vw96pc
90vw108pc
100vw120pc
110vw132pc
120vw144pc
130vw156pc
140vw168pc
150vw180pc
160vw192pc
170vw204pc
180vw216pc
190vw228pc
200vw240pc
210vw252pc
220vw264pc
230vw276pc
240vw288pc
250vw300pc

Live Unit Preview

See how different CSS units affect the size of the box below:

10px

10rem

10em

10%

10vw

10vh

Common Mistake

Use vw for responsive width-based layouts, pc for print typography.

Real Code Example

/* Mobile-first card with vw → pc */
.card {
  padding: 0vw;     /* undefinedpc */
  font-size: 1.5rem;
  width: min(90vw, 40ch);
}

Frequently Asked Questions About VW

When should I use vw instead of vw?

Use vw for elements that scale with screen width.

How many vw is 1vw?

1vw = 1% of the viewport width.

Is vw affected by screen size?

Yes, it changes with browser width.

Is vw good for fonts?

Sometimes, but rem is more consistent.

Keyboard Shortcuts

  • Ctrl + C: Convert
  • Ctrl + I: Invert units
  • Esc: Reset values

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