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Phone camera megapixels to print size at 100 pixels per inch

At 100 pixels per inch, a 12 MP phone photo (about 4,000 x 3,000 pixels) has the largest listed size 30 x 40 inches, a 24 MP photo 36 x 48 and a 48 MP photo 48 x 60. Actual size depends on the phone mode, crop and zoom, so read your own file.

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Chapters

Transcript

Full text of the video, with the source of each claim in square brackets
  1. How big can a phone photo print at 100 pixels per inch? [PX, PH]
  2. Divide each side of the photo in pixels by 100 to get the largest print side in inches, then find the largest listed size that fits [PH, PX].
  3. A 12 MP photo, about 4,000 x 3,000 pixels (computed from the megapixel figure and a 4:3 frame), gives 40 x 30 in at 100 pixels per inch. The largest listed size it reaches is 30 x 40 in [PH].
  4. A 24 MP photo, about 5,656 x 4,242 pixels, gives 56.56 x 42.42 in at 100 pixels per inch. The largest listed size it reaches is 36 x 48 in [PH].
  5. A 48 MP photo, about 8,000 x 6,000 pixels, gives 80 x 60 in at 100 pixels per inch. The largest listed size it reaches is 48 x 60 in [PH].
  6. Pixel sizes are computed from the megapixel figure and a 4:3 frame, rounded down, because phone makers give megapixels, not file sizes. A real file differs by a few percent, and a phone's mode, crop or zoom changes the saved size. Read the width and height in your own file's details before you order [PH].

Key facts

FactDetailSource
RuleDivide each side in pixels by 100 to get inchesPH, PX
12 MP (about 4,000 x 3,000 px)Largest listed size reached: 30 x 40 inPH
24 MP (about 5,656 x 4,242 px)Largest listed size reached: 36 x 48 inPH
48 MP (about 8,000 x 6,000 px)Largest listed size reached: 48 x 60 inPH
Basis of pixel countsComputed from megapixels on a 4:3 frame, rounded downPH
CaveatMode, crop or zoom changes the saved size; read your own filePH

Questions

Can a 12 megapixel phone photo make a big print?

At 100 pixels per inch a 12 MP photo of about 4,000 x 3,000 pixels has the largest listed size 30 x 40 inches. Larger listed sizes need more pixels.

Why do the pixel counts say about?

They are computed from the megapixel figure and a 4:3 frame, rounded down, because manufacturers give megapixels, not file sizes. A real file differs by a few percent.

Does my phone always save at its top megapixel figure?

No. The mode, crop or zoom changes the saved size. Open your own file, read the width and height in pixels and divide each by 100.

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<p>Video: <a href="https://custom.artzfolio.com/videos/phone-camera-megapixels-to-print-size/">Phone camera megapixels to print size at 100 pixels per inch</a> by <a href="https://www.artzfolio.com/">ArtzFolio</a></p>

Sources

As of: Rate card as of 2026-11-10; page data as of 2026-11-13. Video published 2026-11-13. The video states only the facts in the transcript above; figures from other sites are paraphrased and each page was read on the date shown in the guide it links to. Always confirm the live price in the studio before ordering.

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