A1-1 Aspect Ratio

Use the calculator below to help you work out image and printing sizes. When working with cameras or even just on an image, knowing the image size and or DPI is important to know what the end result will be for printing. For example, if you have a certain size picture in pixels and you want a certain physical printing size, then you can work out the DPI. Printing below 75DPI becomes noticeable.

Enter the image pixel size or select a camera

Optional - enter either an image width to work out the DPI or enter a DPI to work out the image size in mm