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Print size and PPI calculator

Files never leave your device

Enter a photo's width and height in pixels, or drop the photo, to see how large it prints at 300, 200 and 150 PPI and how it fares on common print sizes. A 12 MP phone photo (4032×3024) prints 13.4×10.1 inches at 300 PPI.

Show sizes in

Largest print at 300 PPI

13.44 × 10.08 in

Largest print at 200 PPI

20.16 × 15.12 in

Largest print at 150 PPI

26.88 × 20.16 in

Print quality by paper size
Print sizePPIQualityCropped to fillPixels for 300 PPI
4×6 in672Excellent (300+ PPI)11.1%1800×1200
5×7 in576Excellent (300+ PPI)4.8%2100×1500
8×10 in378Excellent (300+ PPI)6.3%3000×2400
11×14 in275Good (200–299)4.5%4200×3300
10×15 cm683Excellent (300+ PPI)11.1%1772×1181
13×18 cm569Excellent (300+ PPI)3.7%2126×1535
A5488Excellent (300+ PPI)6%2480×1748
A4345Excellent (300+ PPI)5.7%3508×2480
A3244Good (200–299)5.7%4961×3508
Letter356Excellent (300+ PPI)2.9%3300×2550

How to use it

  1. Type the pixel width and height, or drop a photo to read them from the file.
  2. Read the largest print size at 300 PPI (sharp up close), 200 PPI (good) and 150 PPI (fine from a distance).
  3. Check the table for your print size: PPI, a quality rating, how much is cropped to fill the paper, and the pixels needed for 300 PPI.

Details

Formula
print size (in) = pixels ÷ PPI; PPI = pixels ÷ print size (in). 1 in = 2.54 cm
Ratings
300+ PPI excellent, 200–299 good, 150–199 fair, under 150 low, for prints viewed up close
Sizes
4×6, 5×7, 8×10, 11×14 in, 10×15 and 13×18 cm, A5, A4, A3, Letter
Crop
Share of the photo cut off when it fills a paper with a different shape (4:3 on 4×6 loses about 11%)

Questions

Are my files uploaded?

No. The page loads its code once, then reads and processes your files inside the browser tab. Nothing is sent to a server; you can confirm it in your browser's network panel while a file converts.

What is a good PPI for printing photos?

300 PPI is the usual target for prints held in the hand, such as 4×6 and 5×7. Around 200 still looks good to most people, and large prints viewed from a distance, like posters, can use 150 or less.

Is PPI the same as DPI?

Not strictly. PPI is image pixels per inch; DPI is printer ink dots per inch. Most forms and apps say DPI when they mean PPI, and this page uses PPI for the photo.

Why is part of my photo cut off on a 4×6 print?

Phone photos are usually 4:3 and 4×6 paper is 3:2, so a lab crops about 11% to fill the paper. The table shows the crop for each size; choose a print size with the same shape, or fit the photo with borders.

How many pixels do I need for an 8×10 print?

2400×3000 pixels for 300 PPI. The last column of the table lists the pixels needed for every size.