Photography & Video

Megapixel & Print Size

Find the maximum print size for a given camera resolution.

Not all cameras can produce large prints with good quality. This calculator shows the maximum quality print size based on your image resolution and desired print DPI.

Calculator inputs

Enter your numbers

300 DPI for photo-quality prints; 150 DPI minimum; 72 DPI for screens.

Results update as you change the inputs. Calculations run in your browser.

Max Print Size @ 300 DPI

20.0" × 13.3"

megapixels
24.0 MP
at150dpi
40.0" × 26.7" (at 150 DPI)
total Pixels
24,000,000 total pixels
See the formula

Formula and method

Print Size (inches) = Resolution (pixels) / DPI

Print size is limited by the pixel count divided by the desired dots per inch. 300 DPI is photographic quality; 150 DPI is acceptable for large-format prints viewed from a distance.

Worked examples

24MP camera (6000×4000)

Width (px):
6000
Height (px):
4000
Print DPI:
300

Max Print Size @ 300 DPI: 20.0" × 13.3"

12MP phone camera

Width (px):
4032
Height (px):
3024
Print DPI:
300

Max Print Size @ 300 DPI: 13.4" × 10.1"

Assumptions and limits

  • Square pixels
  • Single image printed to exact DPI

This tool provides an educational estimate. Rules, rates and personal circumstances can change the answer. Review the assumptions before relying on a result. Report a correction.

Common mistakes to avoid

  • Printing at native resolution without checking DPI — a 72 DPI screen capture will print blurry at photo size.
  • Expecting perfect 300 DPI on large format prints — at 24×36 inches, 200 DPI is perfectly acceptable.

Frequently asked questions

What DPI should I use for printing?

300 DPI: professional photo prints (up to 8×10"). 240 DPI: excellent quality for large prints. 180 DPI: good for prints over 12×18" viewed at arm's length. 150 DPI: minimum for large format (24×36"+). 72 DPI: screen only, not suitable for print.

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