TV Mounting Height Calculator
Calculate the ideal TV wall mounting height from screen size and seating distance.
Returns center height in inches for eye-level viewing from your couch.
The ideal TV mounting height places the center of the screen at eye level when seated, with a slight downward viewing angle. This prevents neck strain and provides the most comfortable viewing experience for extended periods.
The basic formula:
Mount Center Height = Seated Eye Height - (Screen Height / 2 × downward angle adjustment)
For most people seated on a standard sofa, eye height is approximately 42-44 inches (107-112 cm) from the floor. The center of the TV should be at or slightly below this level.
Calculating the bottom edge of the TV (mounting height):
Bottom of TV from floor = Eye Level - (TV Screen Height / 2)
For a 55-inch TV (which has a screen height of approximately 27 inches):
Bottom edge = 42 - (27 / 2) = 42 - 13.5 = 28.5 inches from the floor
This means the bottom of the TV should be about 28-29 inches from the floor.
TV screen dimensions by diagonal size:
TVs are measured diagonally with a 16:9 aspect ratio. The screen height is approximately:
Screen Height = Diagonal × sin(arctan(9/16)) = Diagonal × 0.49
Screen Width = Diagonal × cos(arctan(9/16)) = Diagonal × 0.87
Common sizes:
- 43-inch TV: ~21" tall × 37.5" wide
- 50-inch TV: ~24.5" tall × 43.6" wide
- 55-inch TV: ~27" tall × 48" wide
- 65-inch TV: ~32" tall × 56.7" wide
- 75-inch TV: ~36.8" tall × 65.4" wide
- 85-inch TV: ~41.7" tall × 74.1" wide
Viewing distance recommendations: The Society of Motion Picture and Television Engineers (SMPTE) recommends a viewing angle of about 30 degrees. This translates to a viewing distance of approximately 1.5 to 2.5 times the screen diagonal.
- 55-inch TV: 7-11 feet (2.1-3.4 m)
- 65-inch TV: 8-13 feet (2.4-4.0 m)
- 75-inch TV: 9-15 feet (2.7-4.6 m)
Special mounting situations: For above-fireplace mounting (not ideal but common), tilt the TV downward 5-10 degrees using a tilting mount. For bedroom TVs viewed from bed, mount higher with a 10-15 degree downward tilt. For standing desk setups, raise the center to approximately 47-50 inches.
Mounting hardware note: Ensure your wall mount is rated for your TV’s weight and VESA pattern. Always mount into wall studs or use appropriate wall anchors for drywall.