300 PPI in both directions at 254×203.2 mm
Input and settings
3000×2400 px / 254×203.2 mm / Target 300 PPI / No image needed
Expected result
Horizontal 300.00 / vertical 300.00 PPI. Target requires 3000×2400 pixels.
Print Size & PPI Calculator
Calculate an image’s PPI at a chosen print size, or find the pixels needed for a target PPI.
How to use
- Choose an image or enter pixel dimensions.
- Enter the intended print width and height.
- Review PPI and aspect ratio alongside any cropping and print requirements.
Choose images
You can also drag and drop files here.
Files are processed in this browser. File contents and names are never uploaded or saved in browser storage.
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Result
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About this tool
PPI describes image pixels per inch; DPI describes printer dots. A value such as 300 PPI does not guarantee print quality. Mismatched aspect ratios require cropping or stretching.
Up to 268.4 MB per image. Oriented dimensions are read from headers without decoding the full image.
Continue this task
- Paper Size Comparison — After calculating an image’s print dimensions, compare paper sizes and scaling.
- Fold Position Calculator — Continue from print sizing to panel widths and fold guides.
Try a use case and check the result
Check horizontal and vertical effective PPI from pixel and physical dimensions.
Example buttons replace the inputs and settings above and calculate. Restore previous input steps back one example at a time. After trying multiple examples, repeat restore to return to your original input. This history is lost when the page closes.
A 10-inch square has lower vertical PPI
Input and settings
Same 3000×2400 px / 10×10 inch / Target 300 PPI / Do not apply the paper preset
Expected result
Horizontal 300.00 / vertical 240.00 PPI. Target is 3000×3000 px: 600 more vertical pixels.
How to read the result
PPI equals pixels divided by inches. Required pixels round upward. Aspect ratio is not locked, so horizontal and vertical PPI can differ. Selecting a paper preset changes dimensions only after Apply paper size.
Scope and limits
Calculation works without an image. Loading reads header dimensions; manual pixel values are also accepted. One image up to 256 MiB; dimensions 1–1,000,000 px; physical values up to 10,000; target PPI up to 2400. No image resampling or print-quality guarantee. Restore includes the original image and all manual overrides.
Independently derive 300/300 and 300/240 from 25.4 mm per inch. Restore manually overridden pixels and hidden paper settings after both examples.
Continue with the next task
Image and print dimensions for 300 PPI
Printing 3000×2400 px at 254×203.2 mm gives 300 PPI horizontally and vertically. At a target of 300 PPI, the required dimensions are also 3000×2400 px. If the two PPI values differ, check the image and print aspect ratios. This tool displays calculations; it does not resize images or create print files.
Frequently asked questions
Will this change the original files?
The original files are unchanged. Calculations are displayed on screen; the tool does not resize images or create print files.
Are my files uploaded?
Processing takes place in your browser. Closing the page discards your work.
Do PPI and DPI mean the same thing?
PPI describes image pixels per inch; DPI describes printer dots per inch. PPI alone does not determine print quality.
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Inputs and storage
Keep any content you need before clearing. This tool does not autosave inputs or results. Reloading or closing the page, clearing inputs or resetting may discard your work.
Favorites and language preferences are stored separately and may be lost when site data is cleared. Tool resets and site-data deletion do not delete files already downloaded to your device.