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Flat and Curved Screen Dimensions

Calculate screen dimensions, area and circular curved-screen chord geometry.

  • Formula & worked example
  • Private in your browser
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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.

flat d²=w²+h²; curved chord=2R sin(arc/(2R))

Worked example

Enter these known values and leave the other values blank.

Type
Flat
Diagonal
100 in
Width (W)
221 cm
Height (H)
125 cm
Screen area
27568 cm²

Assumptions and limitations

  • Flat dimensions use a rectangular aspect ratio. Curved horizontal length is an arc on a cylinder; chord and sagitta describe the front view.
  • The curved inverse is restricted to the minor arc, where the chord and sagitta determine a unique arc.

Common questions

What does this model assume?

Flat dimensions use a rectangular aspect ratio. Curved horizontal length is an arc on a cylinder; chord and sagitta describe the front view. The curved inverse is restricted to the minor arc, where the chord and sagitta determine a unique arc.

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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