This little tool helps you calculate the width height or diagonal of a (TV)screen for a given screen ratio.

Just fill in one of the following:
- diagonal
- width
- height

and the other two fields get calculated based on the value you inserted.
You can also switch from INCH to CM and back.
This way you could for e.g. easily enter the diagonal in Inches and let the widht and height show in CM's

You can now also easily compare between ratios of different screen sizes.