VW to REM Converter

Convert VW units to Root EM (REM).

6rem
Common Viewports:

About VW to REM Converter

The VW to REM Converter calculates the equivalent REM value for viewport width units. This converter helps web developers create fluid typography and spacing systems that combine viewport-based scaling with root-relative sizing, perfect for building accessible and responsive interfaces.

Formula

REM = (vw × Viewport Width) / (100 × Root Font Size)

Examples

5vw (1920px view, 16px root) = 6rem
2vw (375px view, 16px root) = 0.469rem

Reference

  • • VW = Viewport Width
  • • REM = Root EM
  • • Combines fluid and accessible units
  • • Often used in calc() e.g. calc(1rem + 1vw)

Frequency Asked Questions

Difference between VW and REM?

VW scales with screen width, REM scales with root font size setting.

When to use REM over VW?

For text that must respect accessibility settings.

Mix VW and REM?

Yes, calc(1rem + 2vw) is great for fluid typography.

Default root font size?

Typically 16px in browsers.