How to use this calculator
Enter the TV diagonal size, then measure your seated eye height from the floor. Add the viewing distance from your eyes to the screen surface, and choose the mounting scenario that best matches the room.
For most living rooms, start with eye-level mounting. Slightly high and reclined settings are useful when furniture, beds, or room constraints require the screen center to sit above eye level.
Formula
screen height = diagonal x 9 / sqrt(16^2 + 9^2)center height = eye height + viewing distance x tan(vertical angle)bottom edge = center height - screen height / 2top edge = center height + screen height / 2The calculator estimates the visible screen position for a standard 16:9 TV. The vertical angle is measured from seated eye level to the center of the screen.
Assumptions and methodology
The safest default is to place the center of the visible screen close to seated eye level. The calculator can also estimate a higher center height when your layout requires an upward viewing angle.
- It assumes a standard 16:9 TV screen.
- Heights are measured from the floor to the visible screen, not to the mount bracket.
- Drill-hole height requires the specific TV model, VESA hole position, wall mount, and bracket offset.
- A higher TV can work in constrained rooms, but long viewing is usually more comfortable when the screen center is near eye level.
Example calculations
65-inch TV, 42-inch seated eye height
A 65-inch 16:9 TV has a screen height of about 31.9 in. With a seated eye height of 42.0 in, eye-level mounting puts the screen center at 42.0 in. The bottom edge is about 26.1 in, and the top edge is about 57.9 in.
Reference chart
These estimates assume a 42-inch seated eye height, eye-level screen center, and a standard 16:9 TV.
| TV size | Center height | Bottom edge | Top edge |
|---|---|---|---|
| 43 in | 42.0 in | 31.5 in | 52.5 in |
| 55 in | 42.0 in | 28.5 in | 55.5 in |
| 65 in | 42.0 in | 26.1 in | 57.9 in |
| 75 in | 42.0 in | 23.6 in | 60.4 in |
| 85 in | 42.0 in | 21.2 in | 62.8 in |
Popular TV mount height questions
These quick answer pages cover common installation searches, such as how high to mount a 65-inch TV, whether a console is too tall, and why above-fireplace mounting often needs extra caution.
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FAQ
How high should I mount a 65-inch TV?
For a 65-inch TV and a typical seated eye height of 42.0 in, the screen center is about 42.0 in from the floor. The bottom edge is about 26.1 in and the top edge is about 57.9 in.
Should TV mount height be measured to the center or bottom?
Use the center of the visible screen for comfort calculations. Bottom and top edge heights help you check furniture clearance and wall placement.
Is this the same as drill-hole height?
No. Drill-hole height depends on the TV model, VESA hole position, mount bracket, and mount offset. This calculator gives screen center, bottom, and top heights.
Is it okay to mount a TV above eye level?
Sometimes, but higher mounting can be less comfortable for long viewing. If furniture, a fireplace, or a bedroom layout requires a higher TV, a tilting mount may help.