PPI Calculator
Compute PPI (pixels per inch) from resolution and screen diagonal. Enter your values, click Calculate, and get the full result with its breakdown — everything is processed on your device, nothing is sent to a server.
All calculations run in your browser. Your data is never sent to our servers.
Example
Example Input
1080×1920, 5.5"
Example Output
~401 PPI
How to Use
- 1Fill in each input field with the values you want to compute.
- 2If there are choices (units, mode, operation), pick what you need.
- 3Click the Calculate button (or press Ctrl+Enter).
- 4The main result and its breakdown appear in the Result area. Click Copy to copy it.
About the PPI Calculator
The PPI Calculator computes a screen's pixels per inch from its resolution and diagonal size — a measure of display sharpness. For example a 5.5" 1080×1920 screen is ~401 PPI. It also shows the dot pitch.
Useful for comparing display sharpness and choosing devices.
FAQ
Is this PPI Calculator accurate?
Yes. It uses standard formulas and runs directly in your browser at full JavaScript precision (plus BigInt/decimal.js for large numbers where needed).
Is my data sent to a server?
No. All calculations happen entirely on your device. No values are sent to or stored on our servers.