1. What is Screen Diagonal?

The screen diagonal is the measurement of a screen's size from one corner to the opposite corner, typically measured in inches. It's the standard way screen sizes are described for TVs, monitors, and mobile devices.

2. How Does the Calculator Work?

The calculator uses the Pythagorean theorem:

Where:

• \( w \) — Width of the screen in inches
• \( h \) — Height of the screen in inches

Explanation: The diagonal forms the hypotenuse of a right-angled triangle where the width and height are the other two sides.

3. Importance of Screen Size Calculation

Details: Knowing the exact screen diagonal helps when comparing displays, determining viewing distance, or calculating pixel density (PPI) when combined with resolution.

4. Using the Calculator

Tips: Enter the width and height in inches (measured from the same units - both should be either the visible area or the full bezel-to-bezel measurement). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: Why measure diagonally instead of width or height?
A: Diagonal measurement provides a single number that represents the overall size of the screen, making it easier to compare different displays.

Q2: How accurate is this calculation?
A: The calculation is mathematically precise. Any inaccuracy would come from how you measure the width and height.

Q3: Does this work for curved screens?
A: For curved screens, this gives the "flat" diagonal measurement, not the actual curved surface distance.

Q4: Can I use this for aspect ratio calculations?
A: Yes, knowing width and height allows you to calculate the aspect ratio (width:height).

Q5: How does this relate to resolution?
A: Combined with resolution, you can calculate pixel density (PPI - pixels per inch) which affects image sharpness.