1. What is Screen Diagonal Size?

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

2. How Does the Calculator Work?

The calculator uses the Pythagorean theorem:

Where:

• \( width \) — Screen width in inches
• \( height \) — Screen height in inches
• \( diagonal \) — Diagonal screen size in inches

Explanation: The formula calculates the hypotenuse of a right-angled triangle formed by the width and height of the screen.

3. Importance of Screen Size Calculation

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

4. Using the Calculator

Tips: Enter the screen width and height in inches. Both values must be positive numbers. The result will be the diagonal measurement in inches.

5. Frequently Asked Questions (FAQ)

Q1: Why is screen size measured diagonally?
A: Diagonal measurement became standard because it gives a single number that accounts for both width and height, making it easier to compare screens.

Q2: How accurate is this calculation?
A: The calculation is mathematically precise if you have exact width and height measurements.

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

Q4: What's the difference between screen size and viewable area?
A: Some displays have bezels that reduce the actual viewable area, but screen size always refers to the full diagonal measurement.

Q5: How does aspect ratio affect screen size?
A: Different aspect ratios (16:9, 4:3, etc.) will have different width/height proportions for the same diagonal size.