1. What is a Scale Resolution Calculator?

Definition: This calculator determines the pixels per inch (PPI) of a display based on its resolution and diagonal size.

Purpose: It helps users understand display density and scaling requirements for Windows systems.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \text{PPI} \) — Pixels per inch (pixels/in)
• \( W \) — Width resolution (pixels)
• \( H \) — Height resolution (pixels)
• \( D \) — Diagonal size (inches)

Explanation: The formula calculates the diagonal resolution in pixels and divides it by the physical screen size.

3. Importance of PPI Calculation

Details: Knowing your display's PPI helps with:

• Setting appropriate scaling in Windows
• Ensuring text and UI elements are properly sized
• Comparing display sharpness between different monitors

4. Using the Calculator

Tips: Enter your display's native width and height in pixels, and the physical diagonal size in inches. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is a good PPI for Windows displays?
A: For 100% scaling, 96 PPI is standard. Higher PPIs (120+) typically require scaling (125%, 150%, etc.).

Q2: How do I find my screen's resolution?
A: Right-click desktop > Display settings > Scroll to "Display resolution".

Q3: Where can I find my screen's diagonal size?
A: Check your monitor's specifications or measure physically from corner to opposite corner.

Q4: Does this work for all display types?
A: Yes, the formula works for LCD, LED, OLED, and other digital displays.

Q5: How does PPI relate to Windows scaling?
A: Windows uses PPI to recommend scaling percentages (e.g., 125% for ~120 PPI, 150% for ~144 PPI).