What Size TV Do You Need? TV Screen Size Calculator

A TV size guide shows how viewing distance and room setup should determine the right screen size.

It includes a calculator plus expert recommendations from THX and SMPTE for matching diagonal size to seating distance.

For most homes, 4K TVs are enough; 8K usually only makes sense at very close distances or with very large screens.

The guide helps buyers avoid choosing a TV that is too big, too small, or overpriced for the room.