REM to VH Converter

Convert REM units to Viewport Height (VH) for vertical scaling.

2.963vh
Common Heights:

About REM to VH Converter

The REM to VH converter translates root-relative font sizes into viewport height units, useful for creating vertically responsive designs and full-screen typography. This conversion requires the root font size and viewport height to calculate VH values from REM units.

Formula

VH = ((REM × Root Size) ÷ Viewport Height) × 100

Examples

2rem (1080px height) = 2.963vh
5rem (1080px height) = 7.407vh
2rem (812px mobile) = 3.941vh

Reference

  • • 1 VH = 1% of viewport height
  • • Common desktop heights: 1080px, 900px
  • • Common mobile heights: 812px, 896px
  • • VH ideal for full-screen sections

Frequency Asked Questions

When to use REM to VH?

For hero headings that scale with screen height or vertical rhythm systems.

How to convert 3rem to VH for 1080px?

3 × 16 = 48px. (48 ÷ 1080) × 100 = 4.444vh.

Is VH good for font sizes?

Use cautiously. Can make text huge or tiny. Consider clamp().

Why does 100vh cause mobile issues?

Address bars change viewport height. Use SVH/DVH/LVH units.