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TV Center and Mounting Geometry

Compute screen center height and distance from a viewing angle and eye height.

  • Formula & worked example
  • Private in your browser
  • No signup
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Calculator inputs

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How to use this calculator

  1. Enter the known values in the units shown. Results update as you type.
  2. Where results are editable, change one to solve backwards. Lock a value to hold it fixed.
  3. Use the worked example to check the method. Reset restores the starting fields.

Private by default

Inputs and results stay in this browser tab. Bookify does not upload or store the values you enter.

Formula and method

The worked inputs demonstrate the selected model; change a known value or leave an editable unknown empty for a supported inverse.

center=eye height+distance×tan(tilt); bottom=center−screen height/2

Worked example

Enter these known values and leave the other values blank.

Screen size
100 in
Watching height (WH)
100 cm
Viewing angle
30 deg
Optimal watching distance (HWD)
4.13 m
TV height (TVH)
1 m
TV bottom edge height
0.38 m

Assumptions and limitations

  • A flat 16:9 screen is viewed from the centerline. Tilt angles describe line of sight to its center; the model does not design brackets or guarantee ergonomic comfort.
  • The angle and eye-height settings are user preferences. Zero tilt places screen center at eye height.

Common questions

What does this model assume?

A flat 16:9 screen is viewed from the centerline. Tilt angles describe line of sight to its center; the model does not design brackets or guarantee ergonomic comfort. The angle and eye-height settings are user preferences. Zero tilt places screen center at eye height.

How do units and inverse calculations work?

Choose compatible units for each quantity. The model converts quantities internally; supported editable fields can be solved from sufficient independent known values. Display rounding does not change the underlying value.

References

Explicit model domains enforce physical bounds and strict whole-count membership where required. Explanatory image content is replaced by original dimension descriptions without changing its visibility.

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