Effective Image PPI
Effective resolution depends on how large an image is placed on the page.
Effective Image PPI
Image sizing · 2 inputs
How to use this calculator
- Enter image pixels in px.
- Enter placed width in cm.
- Select Calculate and keep the output unit with the answer.
Before you use the answer
Confirm the production specification with the printer or delivery platform before choosing dimensions. Keep trim, bleed, live area and pixel density distinct. Numerical consistency helps prevent avoidable rework, but a final proof remains necessary to judge the finished layout.
The file's metadata PPI is not the same as its effective PPI after scaling.
Does it save my inputs?
No calculation history is stored by this website. The calculator works locally in your browser. See the privacy policy for hosting and contact details.
Why might a result be approximate?
Measurement uncertainty, ideal-model assumptions and floating-point rounding can all matter. Displaying more digits does not improve the original measurement.
Related calculations
Enlarged Image PPI
Enlarging a placed image spreads its existing pixels over more physical space.
Open calculator ↗Image Megapixels
Total pixel count describes the size of a rectangular raster grid.
Open calculator ↗Aspect Ratio Target Width
A proportion connects the desired width to a known height.
Open calculator ↗