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Print size calculator

Work out the pixels a print needs, the price of a flex, and whether a photo is sharp enough for it. Free, no sign-up, and it runs in your browser.

Print size

Pixels needed

300 for visiting cards and posters, 100–150 for flex and banners.

7,200 × 3,600 px

25.9 megapixels

Flex price

—

18 sq ft

Is my photo big enough?

How to use it

  1. Enter the print width and height, and choose feet, inches, cm or mm.
  2. Pixels needed: set the DPI (300 for cards and posters, 100–150 for flex).
  3. Flex price: enter your price per square foot and the number of copies.
  4. Photo check: choose the photo, or type its pixel size, to see the DPI it will print at.

Questions

What DPI should a flex banner be?
Flex and banners are seen from a few metres away, so 100–150 DPI is plenty. A 10 × 4 ft flex at 100 DPI is 12,000 × 4,800 pixels. Visiting cards, invitations and posters seen up close need 300 DPI.
Can I print a WhatsApp photo on a flex?
WhatsApp shrinks photos to about 1600 pixels wide. On a 6 × 3 ft flex that is only about 22 DPI, so it will look blurred. Ask for the original photo, or print it smaller.
How is square feet calculated?
Width × height in feet. A 10 × 4 ft flex is 40 sq ft; at ₹12 per sq ft that is ₹480 per copy.
Are my files uploaded?
No. This tool runs entirely in your browser, so your files and text never leave your device. It works without an account.

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