Conversion Form

PERCENTAGE
VH

About the Unit

Percentage (%): Percentage is a relative unit of measurement that expresses a value as a fraction of 100. It is widely used in CSS to define dimensions of elements in a fluid and adaptable manner. For example, if you define an element's width as 50%, it will occupy half of its parent element's width. Using percentages allows elements to automatically adjust based on their container’s size, which is ideal for creating responsive layouts that work well on different devices, such as smartphones, tablets, and desktops. Percentage is also useful for properties like margin, padding, and height, where you want the element to adjust proportionally to its parent container, rather than setting a fixed value. This unit is essential for creating flexible and adaptable layouts where content adjusts automatically to changes in screen size or device layout.

Pro Tip: percentage → vh

Use % for fluid layouts and vh for full-height sections.

Quick Reference: Unit Conversion by Tens

PERCENTAGEVH
10%0.009259vh
20%0.018519vh
30%0.027778vh
40%0.037037vh
50%0.046296vh
60%0.055556vh
70%0.064815vh
80%0.074074vh
90%0.083333vh
100%0.092593vh
110%0.101852vh
120%0.111111vh
130%0.12037vh
140%0.12963vh
150%0.138889vh
160%0.148148vh
170%0.157407vh
180%0.166667vh
190%0.175926vh
200%0.185185vh
210%0.194444vh
220%0.203704vh
230%0.212963vh
240%0.222222vh
250%0.231481vh

Live Unit Preview

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

10px

10rem

10em

10%

10vw

10vh

Common Mistake

Use % for fluid layouts and vh for full-height sections.

Real Code Example

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

Frequently Asked Questions About PERCENTAGE

When should I use percentage instead of percentage?

Use percentage for fluid layouts and relative sizing.

How many percentage is 100percentage?

100% equals the full size of the parent.

Is percentage affected by parent size?

Yes, it's entirely dependent on the parent.

Is percentage good for widths?

Yes, it's ideal for responsive widths.

Keyboard Shortcuts

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

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