PX to REM, EM & VW Converter
Convert design mockup pixel measurements into responsive, accessible CSS units.
Pixels
16px
REM
1rem
EM
1em
Viewport Width
0.8333vw
How it works
Step 01
Enter Value
Type the number and select your source unit (px, rem, em, vw).
Step 02
Configure Base
Adjust the root base font size if your project uses non-16px.
Step 03
Copy Unit
Copy the calculated REM or PX value.
Frequently Asked Questions
REM units respect user browser accessibility zoom and text sizing preferences, making websites more accessible.