Screen Size Calculator
Calculate the width, height and area of a TV or monitor screen from its diagonal size and aspect ratio.
Enter your values and press Calculate.
How to use the Screen Size calculator
The TV body is slightly larger than the screen — check the spec sheet before buying a stand or cabinet.
Formula
Width = diagonal × a ÷ √(a² + b²), height = diagonal × b ÷ √(a² + b²) for an a:b screen.