To easily find out what size you should buy, you can divide your TV viewing distance (in inches) by 1.6 (or use our TV size calculator above) which roughly equals a 30-degree angle. If the best size is outside your budget, just get the biggest TV you can afford.

How do you determine what size TV to buy?

As a general rule, they recommend that you divide the viewing distance by 2.5, which they claim will give you the best size TV in terms of the diagonal measurement. For example, if you usually sit 8ft from your TV, that equates to 96 inches (8ft x 12in).

What TV size do most people buy?

The size of your TV will ultimately limited by the size of the models that are available, especially as they get bigger. The most common TV sizes are 42, 50, 55, 65, and 75 inches (all measured diagonally). You might find some models in between those sizes, but they're much more rare.