Online retail
How should I crop a photo to a marketplace's aspect ratio?
Reduce the target width and height ratio to its smallest whole-number pair. Choose the largest integer multiple that fits both source dimensions. Compare crop area with original area to find the percentage removed. The crop preserves the requested orientation and uses no upscaling.
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Worked example
With the example inputs below, the calculator returns these results.
Export width (px) 2,400
- Source width
- 4,000 px
- Source height
- 3,000 px
- Target ratio width
- 4 parts
- Target ratio height
- 5 parts
Other results
- Export height (px)
- 3,000
- Source area removed
- 40%
Use your own figures
Give the retoucher precise export dimensions and see how much of the source image is lost. Open the worksheet, replace the example values, then copy or print the result.
Listing photo crop size →