This TV screen distance calculator helps you calculate the recommended minimum, maximum, and ideal TV screen distance. How big TV do you have in your living room?
How to use it?
Enter the screen size and resolution of the current TV, press "Update Data" and the converter will show you recommended distances and screen details in the box below.
Minimum distance: The audience must be at least this distance from the screen. This is the shortest recommended distance based on the field of view becoming too wide. This distance is calculated from the side view of the human eye. The average eye width of the human eye is 140 degrees. The rule is that if the viewer is closer than this distance to the screen and looks at one side of the screen, they will not be able to see the other side of the screen with its side view. This corresponds to a 70 degree field of view when the person is in the center of the screen.
Maximum distance: The audience should be set max as far from the screen. This is based on THX's longest recommended and longest allowed viewing distances. THX issues standards as movie theaters must follow the THX certification. THX recommends that the rear row of seats in a theater should have a 36 degree or greater viewing angle and require a minimum of a 26 degree or greater viewing angle to get certification. (Note: Sitting closer to the screen results in a wider field of view.)
Ideal distance: The ideal distance based on visual acuity. This distance is calculated based on the reference resolution of the eyes. The human eye of 20/20 vision can detect or see details as small as 1/60 of a degree of an arc. This distance represents that point beyond which some details on the image are no longer able to show, so pixels begin to blend together. Closer screen than this may result in higher resolution requirements. This value should be lowered if visual acuity is worse than 20/20, increased if visual acuity is better.