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Convert Town DPI Checker

Check DPI (PPI) and convert between pixels, DPI, and physical print size. Useful for print-ready images, scanning settings, and quick “is this 300 DPI?” checks. Runs fully in your browser.

Category: Data · URL: /tools/convert-town-dpi-checker.html
Mode
Paper preset (optional)
Pixels
DPI (PPI)
Physical size
Tip: For Check DPI fill pixels + physical size. For Pixels required fill physical size + DPI. For Physical size fill pixels + DPI.
Batch input (optional)

    


    
  



          

          

            Privacy: runs locally in your browser. No uploads, no tracking scripts.
          

        

      


      
    


    

      
How to use

      
Pick what you want to calculate, enter known values, then click Calculate.
  1. Select a mode: Check DPI, Pixels required, Physical size, or Batch.
  2. Enter pixels, DPI, and/or print size (choose inches/cm/mm). Use presets if needed.
  3. Click Calculate and copy the output.

      

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        Secondary intents covered: Check if an image resolution is enough for printing at 300 DPI, Convert a target print size (in/cm/mm) into required pixel dimensions, Estimate printable size from pixel dimensions at a chosen DPI, Compute separate DPI for width and height to spot stretching, Generate quick A-size print pixel targets (A4, A3, etc.), Batch-check multiple lines of pixels/DPI/size text, Copy a compact result summary for sharing or specs, Troubleshoot mismatched aspect ratios or unrealistic DPI values
      

    


    

      
FAQ

    
Is DPI the same as PPI?
For these calculations, yes: both represent pixels (or dots) per inch used to relate pixels to a physical size.
Why do I see different DPI for X and Y?
It happens when pixel dimensions and physical dimensions don’t match the same aspect ratio; the tool shows both axes plus an effective value.
What DPI should I use for printing?
300 DPI is a common target for high-quality prints; posters viewed from farther away can often be lower.
Does this tool read DPI from an uploaded image?
No—this is a calculator. Enter the pixel dimensions and the intended physical size (or DPI) to compute the result.
How do I calculate pixels for A4 at 300 DPI?
Select A4 preset, set DPI to 300, use “Pixels required”, then calculate (typically 2480×3508 px).
Why doesn’t changing DPI in an editor change image quality?
Changing DPI metadata alone doesn’t change pixel count; quality depends on actual pixels available for the print size.
What batch formats does it accept?
Examples: “2480x3508 @300 dpi”, “300 dpi 8.5x11 in”, or “3600x2400 px 12x8 in” (one per line).