Monitor DPI Calculator

Monitor PPI (pixels per inch) measures screen sharpness. Apple\

The calculator uses the standard published formula for monitor dpi. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

This calculator works with inches, watts. You can enter values in the units shown — the calculator handles all conversions internally.

The core formula is: PPI = √(Width² + Height²) / Screen diagonal (inches). Each step in the calculation is shown so you can verify the result manually.