Screen PPI
Enter your numbers — the results update instantly.
PPI108.79
Dot pitch0.2335 mm
Aspect ratio16:9
Physical size59.8 × 33.6 cm
Worked example
Given: Width (px) = 2,560; Height (px) = 1,440; Diagonal (inch) = 27
Result: PPI = 108.79; Dot pitch = 0.2335 mm; Aspect ratio = 16:9; Physical size = 59.8 × 33.6 cm
How it is calculated
1. Enter the values you know. 2. The calculator converts them to base units and applies the formula. 3. The result is shown in the unit you choose.
Frequently asked questions
How do I calculate it?
Given: Width (px) = 2,560; Height (px) = 1,440; Diagonal (inch) = 27. Result: PPI = 108.79; Dot pitch = 0.2335 mm; Aspect ratio = 16:9; Physical size = 59.8 × 33.6 cm.
Is the calculator free and private?
Yes. It is free, needs no sign-up and runs in your browser — the numbers you type stay on your device.