DPI Calculator – Dots Per Inch
Calculate DPI for printing from image resolution and print size.
About This Calculator
Calculate DPI for printing from image resolution and print size. Use the calculator above for instant results.
Worked Examples
- 4000/8 = 500 DPI | Excellent quality
Answer: 500 DPI
- 96 DPI — low for photos
Answer: 96 DPI
- 300 DPI — perfect for photos
Answer: 300 DPI
Who Uses This Calculator?
Check print quality before ordering.
Set correct resolution for print.
Verify image resolution requirements.
Optimize images for both web and print.
Common Mistakes to Avoid
❌ Screen vs print resolution
Screen uses pixels (PPI). Printers use dots (DPI). They are different. Screen at 72 PPI looks fine on screen but prints poorly.
❌ More pixels is not always needed
300 DPI is the sweet spot for quality printing. Beyond 600 DPI, most inkjet printers can't reproduce the detail anyway.
Frequently Asked Questions
Minimum DPI for photos?
300 DPI for prints held in hand. 150-200 DPI for large prints viewed from distance. 75-100 DPI for large banners.
Upscaling low DPI?
AI upscaling (Topaz Photo AI, Adobe Super Resolution) can add detail. Simple resizing just adds pixels — doesn't improve quality.
Camera megapixels and print size?
12 MP (4000×3000): 10×13 at 300 DPI. 24 MP: 13×17 at 300 DPI. 50 MP: 20×26 at 300 DPI.