Conversion Form

VW
PERCENTAGE

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: vwpercentage

Use vw for full-width sections, % for relative layout sizing.

Quick Reference: Unit Conversion by Tens

VWPERCENTAGE
10vw19200%
20vw38400%
30vw57600%
40vw76800%
50vw96000%
60vw115200%
70vw134400%
80vw153600%
90vw172800%
100vw192000%
110vw211200%
120vw230400%
130vw249600%
140vw268800%
150vw288000%
160vw307200%
170vw326400%
180vw345600%
190vw364800%
200vw384000%
210vw403200%
220vw422400%
230vw441600%
240vw460800%
250vw480000%

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 full-width sections, % for relative layout sizing.

Real Code Example

/* Mobile-first card with vw → percentage */
.card {
  padding: 0vw;     /* undefined% */
  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
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  • Esc: Reset values

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