CSS Unit Converter

Convert between pixels (px), rem, em, percentage, and viewport units for responsive web development.

Input Value

Pixel Value (px)

Context Settings

Base Font Size (px)

Viewport Width

Viewport Height

rem units are relative to the root HTML font size. em units are relative to the parent element font size. vw/vh are relative to 1% of the viewport width/height.

Converted Units

rem1.000 rem

Percentage100.0%

vw (Viewport Width)0.833 vw

vh (Viewport Height)1.481 vh

CSS Example

.element {
  width: 0.833vw;
  font-size: 1.000rem;
  padding: 1.481vh;
}

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