Toolnoza

ENGINEERING TOOL

Screen PPI Calculator

Calculate pixels per inch and compare the pixel density of two displays.

Screen PPI Calculator

FREE ONLINE TOOL
Screen A
Screen B

Screen A: 91.7878 PPI

Screen B: 163.1783 PPI

Difference (B / A − 1): 77.7778%

PPI = √(width² + height²) ÷ diagonal in inches. Assumes square pixels; density alone does not measure overall display quality.

STEP BY STEP

How to use screen ppi calculator

  1. Review the preview or calculated result.
  2. Check the assumptions before using the output.

IN PRACTICE

Example

1920 × 1080 at 24 inches ≈ 91.79 PPI; 3840 × 2160 at 27 inches ≈ 163.18 PPI.

GOOD TO KNOW

How does it work?

PPI = √(width² + height²) ÷ diagonal in inches. Assumes square pixels; density alone does not measure overall display quality.

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Method

Enter resolution and diagonal in inches for both screens.

Example

1920 × 1080 at 24 inches ≈ 91.79 PPI; 3840 × 2160 at 27 inches ≈ 163.18 PPI.

Limits

PPI = √(width² + height²) ÷ diagonal in inches. Assumes square pixels; density alone does not measure overall display quality.

How does it work?

Enter resolution and diagonal in inches for both screens.

What should I check?

PPI = √(width² + height²) ÷ diagonal in inches. Assumes square pixels; density alone does not measure overall display quality.