Pixel to print size calculator
Calculate printable inches and centimeters from image pixels and your selected pixels per inch (PPI).
Quick answer
To calculate print size, divide image pixel width and height by the chosen PPI (pixels per inch). A 3000 × 2400 pixel photo at 300 PPI measures 10 × 8 inches, or 25.4 × 20.32 cm. This conversion gives physical dimensions, not a guarantee of print sharpness.
Make it precise.
All three tools are available below. This page opens with the matching tool selected.
Aspect ratio calculator
Turn width and height into a clean, simplified ratio.
Landscape format · 1.7778:1
Change either number and the ratio updates automatically.
Add an image to activate the download.
The quality slider affects JPEG and WebP; PNG export is lossless. Padding uses the chosen background color.
Check your image's maximum print size at a chosen resolution.
Based on image pixel dimensions; actual print results vary by printer, viewing distance and image quality.
Tip: 300 PPI is a common target for sharp close-viewed prints, not a universal requirement.
How to convert pixels to print size
Print width (inches) = image width (pixels) ÷ PPI. The same formula applies to height. Multiply either measurement in inches by 2.54 to convert it into centimeters.
3000 × 2400 pixel photo: print sizes by PPI
| Target density | Size (inches) | Size (cm) |
|---|---|---|
| 300 PPI | 10 × 8 | 25.4 × 20.32 |
| 240 PPI | 12.5 × 10 | 31.75 × 25.4 |
| 150 PPI | 20 × 16 | 50.8 × 40.64 |
| 72 PPI | 41.67 × 33.33 | 105.83 × 84.67 |
Lower PPI creates a larger physical print from the same source pixels. The 72 PPI example is a calculation, not a recommended quality setting. Sharpness depends on viewing distance, source quality and printing equipment.
Common print-size questions
Is 300 PPI always required for printing?
No. It is a common target for close-viewed photographs, but wall art and posters viewed from farther away may work at lower PPI. Check your printer's specifications.
Is PPI the same as DPI?
No. PPI measures image pixels per printed inch; DPI refers to printer dots. This calculator uses PPI.
Does changing PPI add detail to the source image?
No. The same source pixels are distributed over a larger or smaller physical area. Changing PPI cannot recover missing image details.