Screen Size Formula:
| From: | To: |
The LED Screen Size Calculator calculates the diagonal size of a screen in inches based on its resolution (width and height in pixels) and pixel density (PPI - pixels per inch). This helps determine the physical dimensions of displays for various applications.
The calculator uses the screen size formula:
Where:
Explanation: The formula applies the Pythagorean theorem to calculate the diagonal pixel count, then divides by PPI to convert to physical inches.
Details: Accurate screen size calculation is essential for display manufacturing, purchasing decisions, comparing display specifications, and understanding pixel density for image quality assessment.
Tips: Enter width and height in pixels, and PPI value. All values must be positive numbers. Common PPI values range from 72 (low density) to 500+ (high density displays).
Q1: What Is PPI And Why Is It Important?
A: PPI (Pixels Per Inch) measures pixel density. Higher PPI means sharper images and text, while lower PPI may result in visible pixels.
Q2: How Do I Find My Screen's PPI?
A: PPI can be calculated if you know the resolution and physical size, or found in the display specifications from the manufacturer.
Q3: What Are Common Screen Sizes And Resolutions?
A: Common combinations include 24" 1080p (92 PPI), 27" 1440p (109 PPI), and 32" 4K (138 PPI) for monitors.
Q4: Does Screen Size Affect Image Quality?
A: Yes, when combined with resolution. The same resolution on a larger screen results in lower PPI and potentially less sharp images.
Q5: Can I Use This For Any Display Type?
A: Yes, this formula works for LED, LCD, OLED, and any digital display technology that uses pixels.