4×6, 5×7 or 8×10? What each photo size crops
Compare three familiar print shapes using one 3000 × 2000 photo, with crop dimensions, retained area and orientation explained.
Read articleGeometry tools
Image Crop Calculator
Find the largest exact whole-pixel crop for a chosen ratio, including centered crop coordinates and the image area retained.
Your dimensions
On your deviceExample result
1,600 × 2,000 pixels
Exact 4:5 crop · centered within 3,000 × 2,000 px
- Image retained
- 53.33%
- Top-left coordinate
- x 700, y 0
- Image removed
- 46.67%
Coordinates start at the upper-left of the original image; x increases rightward and y downward.
This is the largest whole-pixel rectangle with the exact selected ratio. It does not create or download a cropped image.
Calculation details & inputs
| Image width | 3000 px |
|---|---|
| Image height | 2000 px |
| Target ratio width | 4 |
| Target ratio height | 5 |
| Crop width (px) | 1,600 |
|---|---|
| Crop height (px) | 2,000 |
| Left crop origin x (px) | 700 |
| Top crop origin y (px) | 0 |
| Removed from right (px) | 700 |
| Removed from bottom (px) | 0 |
| Image retained (%) | 53.333333 |
| Image removed (%) | 46.666667 |
Behind the numbers
How the calculation works
Reduce the ratio to a:b. The largest integer scale is floor(min(image width ÷ a, image height ÷ b)).
An exact integer ratio may discard an extra row or column compared with a fractional crop. If centering leaves an odd pixel, the extra pixel is removed from the right or bottom.
Results use the numbers you enter. See the methodology for precision, accepted ranges and sharing behavior.
Reference notes
References checked September 28, 2026. Calculations and worked examples are our own.
Useful answers
Common questions
Why can an exact crop remove an extra pixel?
An exact whole-pixel ratio requires both dimensions to be integer multiples of its reduced ratio. The largest such rectangle can be slightly smaller than a crop tool that allows fractional boundaries.
Can I move the crop or download a cropped image?
This tool plans a centered crop and reports its coordinates. It does not edit the file. Use these dimensions in your image editor, then position the crop to preserve the subject.
A practical next read
Related print guides
How large can I print my photo? A practical sizing workflow
Work from your original pixels to a realistic print size, then account for cropping, viewing distance and the file you actually send.
Read articleDoes changing DPI to 300 improve an image?
Separate a resolution label from resampling and learn what actually changes when a 2400 × 3000 image is set to another PPI.
Read articleRelated calculators
All tools →Print / 01
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 / 02
Print size → pixels
Start with a physical size and a target PPI. Calculate a whole-pixel canvas with an explicit rounding choice.
Open toolPrint / 03
Find 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 tool