When calculating the throw distance, what variable is NOT included?

In calculating the throw distance for a projector, the key variables typically include the dimensions of the screen, such as its height and width, and its aspect ratio, which defines the relationship between those dimensions. The throw distance is the distance from the projector lens to the screen and is influenced by the size of the image it needs to project.

The width of the projector is not typically factored into the calculation of throw distance, as it does not affect the image size or the distance required for projection. The throw distance relies on the screen dimensions and the specifications provided by the projector manufacturer concerning how far away the projector needs to be to achieve the desired image size based on the screen width or height. Including the width of the projector in this calculation would not provide relevant information about the requirements for the projection performance.