OhMyCalc

Screen Size Calculator

Calculate screen diagonal from width and height.

How to Use the Screen Size Calculator

  1. Enter the required values.
  2. Click Calculate to see the results.
  3. Review the output values.
  4. Adjust inputs as needed.

Quick Reference

FromTo
16:9 24"53.1×29.9 cm
16:9 27"59.8×33.6 cm
16:9 32"70.8×39.8 cm
4:3 17"34.5×25.9 cm
21:9 34"79.7×33.5 cm
1 inch2.54 cm

Use Cases

Formula

d = sqrt(w² + h²). Inches = cm / 2.54.

Frequently Asked Questions

How to use?
Enter the data and click the calculate button.
Calculation accuracy?
Calculations are performed with high precision.
Is it free?
Yes, all calculators are completely free.