4K monitor scaling and text size for migraine days

Updated 2026-11-02

Quick answerOn a 4K monitor, Windows suggests a scale above 100% so text isn't tiny. Set it in Settings, System, Display, Scale. Then use browser zoom for websites. Tiny text with tight lines makes reading harder, and line spacing affects how clear text looks, so scaling and spacing both matter.

Scaling

  1. Open Settings > System > Display.
  2. Under Scale & layout, pick the recommended scale or larger.

Browser

  1. Set a default page zoom in Chrome settings.
  2. Increase line spacing with Reading mode or Migraine Mode.

Good to know

  • High-density screens are often bright; dim them to match the room.

FAQ

What scaling should I use on a 4K monitor?

Start with Windows' recommended setting and increase if text feels small.

Does Migraine Mode detect 4K screens?

It reads the pixel ratio and starts with slightly more dimming on high-density screens.

Sources

  • Microsoft Support: Change your screen resolution and layout in Windows (scale). Link
  • Google Chrome Help: Change text, image and video sizes (zoom). Link
  • Wilkins AJ, Nimmo-Smith MI. The clarity and comfort of printed text. Ergonomics 1987;30(12):1705–1720. Link

Not a medical device and not medical advice. Migraine Mode is a screen-comfort tool: it does not diagnose, treat, cure or prevent migraine or any other condition, and it does not replace a doctor. Its settings are based on studies of light, colour, flicker, patterns and motion; the extension itself has not been clinically tested. When to see a doctor.