Print & DPI Calculators
Free tools for calculating DPI, PPI, print dimensions, pixel conversions and image resolution.
DPI CalculatorCalculate DPI from pixels and print dimensions.Print Size CalculatorFind the maximum print size for an image.Pixels to InchesConvert pixels to physical dimensions using DPI.PPI CalculatorCalculate screen pixel density from resolution and diagonal size.
How pixels, DPI, PPI and print size fit together
Every digital image is a grid of pixels. On its own it has no physical size. Once you print it, you decide how many pixels go into each inch — that's the DPI. The relationship is always the same: pixels = inches × DPI.
Know your pixels and print size? The DPI Calculator gives the resolution. Know your pixels and target DPI? The Print Size Calculator gives the largest print. Need just one measurement converted? Use Pixels to Inches.
PPI is the same idea applied to screens: how densely pixels are packed on a display. The PPI Calculator works it out from a screen's resolution and diagonal size.
More print tools on the way
Pixels to CMConvert pixels to centimetres using DPI.Coming soon