Color converter
Convert colors between HEX, RGB and HSL, with a color picker and a live preview. Supports shorthand HEX and transparency.
PX to REM, EM and PT converter
Convert pixels to rem, points to pixels or centimetres to pixels. Change the root font size when your design does not use 16 pixels.
Runs in your browser. Nothing is uploaded.
Loading the CSS unit converter…
How to use the CSS unit converter
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Enter a value and pick its unit.
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Set the root and parent font size if they differ from 16 pixels.
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Copy the value in the unit you need.
Frequently asked questions
How many pixels is 1 rem?
1 rem equals the font size of the root element, which is 16 pixels in most browsers unless the page or the user changes it.
How many points is a pixel?
CSS defines 96 pixels per inch and 72 points per inch, so 1 pixel is 0.75 point.
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