This article is about the relation between an image size in pixels and a photographic print size. First, it recommends the photographic print size for given digital image dimensions in pixels. Second, it finds the resulting pixels per inch value for a printed digital image with known linear and pixel dimensions.

The Inches to Pixels and Pixels to Inches Converter is a simple online calculator that allows you to convert measurements between inches and pixels based on the provided resolution in pixels per inch.

This online calculator adjusts the second dimension of a picture/video, given the new first dimension, keeping the original proportions

This online calculator creates captivating photo negatives by inverting the colors of your images.

This article describes how to write calculators for an image manipulation