Max Print Size
13.33″ × 10″
MP
12
Ratio
4:3
Max Print Size @ 300 DPI
13.33\u2033 \u00D7 10\u2033
12 megapixels | 4:3
Max Width
13.33\u2033
Max Height
10\u2033
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Inputs
Result
Width: 4000/300 = 13.33". Height: 3000/300 = 10". Resolution: 4000×3000 / 1,000,000 = 12 MP.
Inputs
Result
Width: 6000/240 = 25". Height: 4000/240 = 16.67". Resolution: 24 MP.
300 DPI is the standard for photo-quality prints. At 300 DPI, individual pixels are invisible from normal viewing distance. 240 DPI is acceptable for most prints, and 150 DPI works for large prints viewed from farther away.
| DPI | Quality | Max Print from 12 MP | Best For |
|---|---|---|---|
| 300 | Excellent | 14″ × 9.3″ | Photos, fine art |
| 240 | Good | 17.5″ × 11.7″ | Everyday prints |
| 150 | Acceptable | 28″ × 18.7″ | Posters, large prints |
| 72 | Low | 58″ × 38.9″ | Screen only |
For a 16×20" print at 300 DPI, you need 4800×6000 = 28.8 megapixels. Most modern phones (12–50 MP) can produce excellent prints up to 16×20". For 24×36" prints, 24+ megapixels is ideal.
Aspect ratio is the proportional relationship between width and height. Common camera ratios: 3:2 (DSLR), 4:3 (phones, Micro Four Thirds), 16:9 (video). Print sizes have their own ratios — 4×6" is 2:3, 8×10" is 4:5. Mismatched ratios require cropping.
Software upscaling (like Topaz Gigapixel or Photoshop) can double resolution with acceptable quality. Going beyond 2× often introduces artifacts. For best results, always shoot at your camera highest resolution setting.
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Last Updated: Mar 19, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.