PX to REM Converter API

Convert CSS pixels to rem or rem to pixels for a given root font size (16px by default).

POST /api/v1/tools/px-to-rem-converterMCP px_to_rem_converterDesign & Colour

Convert pixels to rem and rem to pixels using any root font size, with a quick reference table of common sizes. Ideal for accessible, scalable CSS.

Input

Send these as a JSON object. Unknown fields are rejected.

value: The length to convert: pixels for pxToRem, rem for remToPx. (number, required)
direction: pxToRem or remToPx. (string, one of pxToRem, remToPx, default "pxToRem")
rootFontSize: Root (html) font size in pixels; browsers default to 16. (number, 0.01 to 1000, default 16)

Try it in the browser JSON Schema Get an API key

curl https://pithlab.com/api/v1/tools/px-to-rem-converter \n  -H "Authorization: Bearer $PITHLAB_KEY" \n  -H "Content-Type: application/json" \n  -d '{"value":24,"direction":"pxToRem"}'