TV Wall Mount Height Calculator
This TV wall mount height calculator puts the centre of the screen at your seated eye level, the most comfortable position for long viewing. With eyes 105 cm from the floor, a 55 inch TV should be centred at 105 cm, with the bottom edge at about 71 cm. It also checks your viewing distance against common standards.
- Screen centreat seated eye level
- 55 inch screen heightabout 68.5 cm
- KEF viewing distancescreen size × 1.67
Updated November 2026 · Works in metric units
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How high should a TV be mounted?
For everyday viewing, the centre of the screen should be at, or just above, your eye level when seated. That keeps your neck neutral. To find it, sit where you normally watch and measure from the floor to your eyes. If the TV has to go higher, for example above a fireplace, KEF’s guide suggests keeping the centre no higher than eye level plus 0.22 × viewing distance, which works out at an upward angle of about 12°. Above that, a tilting or pull-down bracket helps.
TV height by screen size
| Screen size | Screen height (16:9) | Bottom edge if centre at 105 cm | Top edge |
|---|---|---|---|
| 43″ | 53.5 cm | 78 cm | 132 cm |
| 50″ | 62.3 cm | 74 cm | 136 cm |
| 55″ | 68.5 cm | 71 cm | 139 cm |
| 65″ | 80.9 cm | 65 cm | 145 cm |
| 75″ | 93.4 cm | 58 cm | 152 cm |
A 16:9 screen’s height is 0.49 × its diagonal and its width is 0.87 × its diagonal.
TV viewing distance calculator
Viewing distance depends on how much of your field of view the screen should fill. SMPTE recommends at least 30° for a relaxed view; THX suggests about 36° for a cinema-like experience; KEF gives a simple rule of screen size × 1.67. Closer seating suits 4K and larger screens.
| Screen | SMPTE 30° | Size × 1.67 | THX 36° |
|---|---|---|---|
| 43″ | 1.78 m | 1.82 m | 1.46 m |
| 55″ | 2.27 m | 2.33 m | 1.87 m |
| 65″ | 2.69 m | 2.76 m | 2.21 m |
| 75″ | 3.10 m | 3.18 m | 2.56 m |
Wall-mounting checklist
- Find studs in plasterboard walls, or use fixings rated for the TV’s weight in masonry.
- Check the bracket’s VESA pattern and maximum weight match the TV.
- Avoid hidden cables and pipes: use a detector before drilling, and do not run cables vertically or horizontally off sockets outside the safe zones.
- Plan for a soundbar under the screen if you will use one.
Frequently asked questions
How high should a 55 inch TV be mounted?
Put the centre at your seated eye height, often around 100 – 110 cm. With the centre at 105 cm, the bottom of a 55 inch TV is about 71 cm from the floor.
How high should a TV be above a fireplace?
As low as the mantel allows. Try to keep the centre within about eye level plus 0.22 × viewing distance; for 3 m away that is about 66 cm above eye level. A pull-down bracket helps if it must go higher.
How far should I sit from a 65 inch TV?
About 2.2 to 2.8 m. THX’s 36° angle gives 2.2 m, KEF’s size × 1.67 rule gives 2.76 m and SMPTE’s 30° gives 2.69 m.
Should the TV be at eye level?
Yes, ideally the centre of the screen is at or slightly above seated eye level, so you look straight ahead or very slightly up.
Sources and method
We use official UK guidance and recognised formulas, and test each calculator against worked examples. Results are estimates to help you plan, not professional advice. See how we work.