DPI Calculator for Android

App overview

DPI Calculator is a free Android utility from developer Duncan Leo that determines a device’s pixel density (DPI) using its screen resolution and diagonal size. Listed in the Utilities & Tools category, the app is designed to make DPI estimation quick and accurate for a wide range of phones and tablets.

How to use the tool

• Pick your model from the app’s built-in device catalog.
• Enter the screen resolution and diagonal measurement (in inches).
• Tap the calculate action to see the DPI value.

The flow is straightforward, so even users with little technical background can get a result in seconds.

Key capabilities

• Add custom device entries so uncommon or older models can be measured.
• Built-in catalog of popular devices to speed up finding your hardware.
• Automatic DPI computation from the values you provide.

These functions make it useful for designers, developers, and anyone curious about display sharpness.

Where to get it and inspect the code

The app is free to download on Android. For people who want to review or adapt the implementation, the project’s source is available on GitHub.