METHOD
How this tool works
rem values are multiplied by the root font size; em uses the selected context size.
DEVELOPER TOOLS
PX to REM Converter
Convert CSS pixels, rem and em values.
FreeNo accountRuns locally
Converted value
EXAMPLE
A quick check
16 px equals 1 rem when the root size is 16 px.
Designed for a single task.Inputs are processed in your browser; Utilens does not require an account or intentionally send your entered tool values to an application server.
Quick answers
Is the browser default always 16 px?
Often, but users and stylesheets can change it.
What is the difference between rem and em?
rem uses the root size; em uses the current context size.