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PX to REM Converter
Convert pixels to rem, em, points, and percent for CSS.
px
px
How it works
rem = pixels ÷ root font size. Browsers default to a 16 px root, so 24 px is 1.5 rem. Points use 1 px = 0.75 pt. Using rem lets text and spacing scale when people change their browser font size.
FAQ
Is this calculator free?
Yes. No signup is needed and nothing you enter is stored.
Is the result exact?
Results are rounded for display. For financial, medical, or legal decisions, confirm with a professional.
Do my numbers leave my device?
No. The calculation runs in your browser.