Screen Size Calculator

Calculate display width, height, and area from a diagonal size and aspect ratio, plus pixel density (PPI) when resolution is given.

Frequently Asked Questions

How wide is a 65-inch TV?

About 56.7 inches (144 cm) wide and 31.9 inches (81 cm) tall, assuming 16:9. Add an inch or two of bezel for mounting.

Is bigger always better?

Only if your viewing distance supports it. Sit too close and individual pixels are visible or you cannot see the full frame without moving your eyes.

What aspect ratios are common?

16:9 (TVs, most monitors), 21:9 (cinematic ultrawide), 32:9 (super ultrawide), 4:3 (legacy), 3:2 (laptops, Surface), 16:10 (Macs, productivity).

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.