Image Size Converter
Convert image dimensions between pixels, inches, and cm at any DPI.
Supports 72, 96, 150, and 300 DPI for web, screen, print, and professional photo output.
Enter pixels and DPI — print size calculates instantly. Or enter a print size to find pixels needed.
Image size depends on pixels and DPI (dots per inch).
The formula:
- Size in inches = Pixels / DPI
- Size in cm = Pixels / DPI × 2.54
- Pixels needed = Size in inches × DPI
Common DPI values:
- 72 DPI: Screen/web display (standard monitor)
- 150 DPI: Draft quality print
- 300 DPI: High quality print (photos, brochures)
- 600 DPI: Professional/fine art print
Example (1920 px wide image):
- At 72 DPI: 26.67 inches (67.7 cm): great for web
- At 150 DPI: 12.8 inches (32.5 cm): decent print
- At 300 DPI: 6.4 inches (16.3 cm): high quality print
Standard print sizes:
- 4×6 in (10×15 cm) at 300 DPI needs: 1200×1800 px
- 8×10 in (20×25 cm) at 300 DPI needs: 2400×3000 px
- A4 (21×29.7 cm) at 300 DPI needs: 2480×3508 px