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Image & print calculators
9 focused calculators. Find the right one for the numbers you have and the size you need.
9 tools shown.
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Pixels → print size
Convert pixels to inches, cm or mm at any PPI. Convert one measurement instantly, compare a PPI table, or calculate the width and height of an image.
Open toolPrint size → pixels
Start with a physical size and a target PPI. Calculate a whole-pixel canvas with an explicit rounding choice.
Open toolFind an image’s DPI
Calculate the DPI (PPI) of an image at your print size: DPI = pixels ÷ inches. Choose a local image or enter its pixels, then compare fit versus crop.
Open toolResize the dimensions
Reduce a pixel pair to its aspect ratio, then calculate a new width or height while keeping the original proportions.
Open toolPlan an exact crop
Find the largest exact whole-pixel crop for a chosen ratio, including centered crop coordinates and the image area retained.
Open toolScale a document
Calculate a copier or document scaling percentage between two sizes, with an optional margin on every target edge.
Open toolMeasure pixel density
Calculate display pixel density, physical width and height, and pixel pitch from the native resolution and screen diagonal.
Open toolConvert CSS units
Convert px, rem, em, pt, vw and vh with your own font sizes and viewport dimensions. See every equivalent and share the assumptions.
Open toolFind the print size
Enter an image’s pixels and a target PPI. See the largest print size, the effective DPI on 13 standard sizes and how much each crop keeps.
Open tool