Photography calculators — image geometry & print size
Plan an image resize or centered crop, then check print dimensions and source pixels per inch. Free to use, with no account needed.
Aspect-ratio & crop calculator
Find a source image’s exact ratio, calculate proportional dimensions and compare fit versus crop-to-fill. See centered crop losses without uploading an image.
Photo print-size & PPI calculator
Convert pixels into print dimensions at a chosen PPI. Check crop-to-fill resolution for your target print and compare common photo sizes without an upload.
Plan the geometry before printing
Image ratio and print resolution answer different questions. A square print may crop a rectangular image; PPI then describes how many source pixels remain per inch of that print. These tools calculate dimensions without uploading or editing your photo.