REM to VW Converter | Convert Root EM to Viewport Width (Online)
Convert REM units to Viewport Width (VW) for fluid typography.
About REM to VW Converter | Convert Root EM to Viewport Width (Online)
The REM to VW converter transforms root-relative units into viewport-based units, enabling truly fluid typography and spacing that scales with screen width. This conversion requires knowing both the root font size and the target viewport width to calculate accurate VW values.
Formula for REM to VW Converter | Convert Root EM to Viewport Width (Online)
VW = ((REM × Root Size) ÷ Viewport Width) × 100
Examples
2rem (1920px view)
=
1.667vw
3rem (1920px view)
=
2.5vw
2rem (375px mobile)
=
8.533vw
Reference
- • 1 VW = 1% of viewport width
- • REM provides accessibility, VW provides fluid scaling
- • Common to use clamp() combining both: clamp(1rem, 2vw, 3rem)
- • Desktop viewports: 1920px, 1440px
- • Mobile viewports: 375px, 414px
Frequently Asked Questions for REM to VW Converter | Convert Root EM to Viewport Width (Online)
Why convert REM to VW?
To create fluid scaling typography that respects base REM sizes.
How to convert 2rem to VW for 1440px?
2 × 16 = 32px. (32 ÷ 1440) × 100 = 2.222vw.
Should I use REM or VW?
Use both with clamp().
Can VW make text too small?
Yes. Always use a minimum size with max() or clamp().