How to measure a TV
This is a measurement method, not a product specification.
Measure the object you are trying to place, and name that object. A 65-inch class television is not 65 inches wide. The advertised figure is a diagonal size class for the screen. The cabinet, the set on its stand, and the carton are three different rectangles.
Use a metal tape if you have one. Record width, height and depth separately, and write down the unit before you convert anything. Width is the horizontal span as you face the screen. Height is vertical. Depth is how far the set projects from the wall or how much of a shelf it occupies. Do not sort the three numbers from largest to smallest and then guess which one was the depth.
For the cabinet, include the frame and any fixed protrusions that would hit an opening. If the stand is wider than the cabinet, or its feet land inside the cabinet edges, measure that arrangement separately and name it. Two stand positions on the same model can change height and depth while leaving the screen unchanged.
If you are replacing a set, measure the old cabinet and the clear space around it. The old diagonal is only a clue. A newer panel can be wider, taller or deeper at the same size class, and the stand can be the part that does not fit.
Keep the original reading. Converting 32.75 inches to centimetres and then back to a rounded inch can invent a difference that was not in the measurement. This site calculates screen geometry from the diagonal and aspect ratio, and it shows cabinet dimensions only from that model’s manufacturer page.