What size screen does this room need?
Drag the screen size and room depth, and see which seats can read it.
- Too close
- Comfortable
- Too far to read
- Screen
- 56.7″ wide, 31.9″ tall
- Closest comfortable seat
- 4 ft 9 in
- Farthest readable seat
- 15 ft 11 in
- Seats in range
- 8 of 9
The back seat is 17 ft 10 in away, which calls for about 73″. The next standard size up is 75″.
How this is worked out
The farthest seat should be no more than a set number of image heights from the screen: 4 for detailed work, 6 for presentations and video calls, 8 for video playback. This is the 4/6/8 rule that AV designers have used for decades.
The closest seat should be at least one image width back, so nobody has to turn their head to read both edges.
AVIXA's DISCAS standard goes further and accounts for text size and viewing angle. Use this tool to get the size right, then confirm the details with your installer.
Common questions
What size TV do I need for a conference room?
Measure from the screen to the farthest seat. For presentations and video calls, the picture should be at least one sixth of that distance tall. A room with the farthest seat 15 feet away needs a picture about 30 inches tall, which is a 65-inch screen.
How close can the nearest seat be?
Keep the nearest seat at least one screen width back. For a 65-inch screen that is about 4 feet 9 inches. Any closer and people have to turn their heads to read both edges.
Should I buy one large screen or two smaller ones?
Two screens let a video call show people on one and shared content on the other. Size each one for the farthest seat as if it were the only screen, because either may carry the content people need to read.
When is a TV not big enough?
Flat panels commonly stop at 98 to 110 inches. If the farthest seat calls for more than that, use a projector, a direct-view LED wall, or a second display partway down the room.