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18×24 in Pixels at 300 DPI

18 × 24 inches is the classic medium poster and the size of many ready-made poster frames. At 300 DPI an 18×24 is 5,400 × 7,200 pixels, or 45.7 × 61 cm.

At 300 DPI

5,400 × 7,200 pixels

Landscape: 7,200 × 5,400 pixels

18 × 24 inches · 45.7 × 61 cm

18×24 in pixels at every DPI

18×24 in pixels at every DPI
DPIPortrait (px)Landscape (px)
300Print-shop standard, seen up close5,400 × 7,2007,200 × 5,400
200Sharp on a wall3,600 × 4,8004,800 × 3,600
150The floor for wall art2,700 × 3,6003,600 × 2,700

Pixels = inches × DPI, rounded to the nearest whole pixel. 300 DPI is the print-shop standard for prints seen up close; 200 is fine on a wall; 150 is the floor. Etsy itself sets no DPI rule.

Which file prints 18×24

18×24 is in the 3:4 family, so one 3:4 file prints it with no crop. The same file covers every size in this table; only the DPI changes.

3:4 print sizes in pixels
Print sizecmPixels at 300 DPI
6 × 8 in15.2 × 20.31,800 × 2,400
9 × 12 in22.9 × 30.52,700 × 3,600
12 × 16 in30.5 × 40.63,600 × 4,800
18 × 24 in45.7 × 615,400 × 7,200
View the 3:4 table

What sellers use 18×24 for

  • Posters and large wall art for a standard 18×24 frame.
  • Movie-style and travel posters sold in a 3:4 bundle with 12×16 and 9×12.
  • Statement pieces for walls where a 24×36 would be too large.

Check your own file

Enter your image's pixel size in the calculator and see which of these sizes it prints sharp at, and how much it would crop.

Print Size & DPI Calculator

Frequently asked questions

How many pixels is an 18×24 at 300 DPI?

5,400 × 7,200 pixels in portrait, 7,200 × 5,400 in landscape. At 200 DPI it is 3,600 × 4,800 and at 150 DPI 2,700 × 3,600. A poster this size is usually seen from a distance, so 200 DPI is enough unless buyers look at it up close.

Which other sizes share the 18×24 ratio?

6×8, 9×12, 12×16 and 18×24 are all 3:4, so one 3:4 file prints every one of them without a crop. Export the master at 18×24 size, 5,400 × 7,200 pixels, and the smaller sizes print from it at well above 300 DPI.

Will an 18×24 file print at 24×36?

Not without a crop. 24×36 is 2:3, taller than 3:4, so filling it with an 18×24 file trims about 11% of the image from the sides, and the file prints at only 200 DPI at that size. Sell 24×36 from a separate 2:3 master.

Need 300 DPI files for every ratio?

Wall Art Studio upscales one artwork and exports print-ready files in 2:3, 3:4, 4:5, 11×14, square and A sizes, ready to upload to Etsy.

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