Best TV Size for 18 Feet
You have a massive wall to fill. Even 85" can feel small. Consider a 98" TV or an Ultra Short Throw Projector to match the scale of the room.
Recommended TV Size
144"
Ideal range: 108" - 180"
Expert pick: 98 inch or Projector
Best for: home theater or great room
Typical setup for this distance
THX Certified Viewing Angle
Based on industry standards
4K Resolution Optimized
No visible pixels at this distance
In Feet
18 ft
In Meters
5.5 m
Room Size Guide
| Distance | TV Size | Room Type | |
|---|---|---|---|
| 5 feet | 40" | Bedroom or small office | View guide → |
| 7 feet | 56" | Small living room | View guide → |
| 9 feet | 72" | Living room or den | View guide → |
| 11 feet | 88" | Large living room | View guide → |
| 14 feet | 112" | Home theater or great room | View guide → |
Use this table to find the right TV size for any room. Each row links to a full guide with TV recommendations.
How We Calculate TV Size
Measure your viewing distance
Measure the distance from your couch or seating area to where the TV will be mounted. Your distance is 18 feet.
Calculate the ideal size
For 18 feet, divide the distance in inches by 1.5. This gives you approximately 144 inches as the ideal diagonal screen size.
Consider the range
TVs between 108" and 180" will all work well at 18 feet. Go larger for immersive movies, smaller for casual viewing.
Choose your TV type
For a 144" TV, consider QLED/Mini-LED for bright rooms. Browse our recommendations below.
The Formula: Viewing Distance (in inches) ÷ 1.5 = Ideal TV Size
18 feet = 216 inches ÷ 1.5 = 144 inches
Recommended TV Types
Frequently Asked Questions
What size TV should I get for 18 feet away?
Is 144 inches too big for 18 feet?
What room is 18 feet typical for?
All Viewing Distance Guides
Click any distance for a full guide with TV recommendations
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